India's Foreign Policy: Indo-Pak Wars and the Sino-Indian War, ISC Class 12

What India's Foreign Policy is about

Weightage: CISCE publishes no chapter or unit weightage for ISC History. India's Foreign Policy is part of Section A: Indian History, 5 of the 2027 syllabus and can be asked anywhere in the 80-mark Paper I (Section A 16 one-mark items, Section B 4-mark short answers, Section C 8-mark long answers).Source: CISCE ISC History (851) syllabus, examination year 2027; ISC 2025 specimen question paper

Key concepts

First Indo-Pak War (1947-49): causes, course, consequences

Causes
1. Kashmir was a Muslim-majority state ruled by a Hindu Maharaja, Hari Singh, and bordered both dominions; he delayed accession, hoping for independence.
2. Pakistan expected Kashmir to join it; it cut off supplies to the state and a revolt broke out in Poonch.
3. On 22 October 1947 Pakistan-backed Pathan tribesmen invaded, looted Muzaffarabad and Baramulla and advanced on Srinagar.
4. The Maharaja appealed to India, which would send troops only after accession. He signed the Instrument of Accession on 26 October 1947, with Sheikh Abdullah's support; Pakistan refused to accept it.

Course

• 27 October 1947: Indian troops were airlifted to Srinagar and saved the city; the raiders were driven out of the Valley (battle of Shalateng, November 1947).
• Pakistan's regular army joined the fighting in 1948; India held Poonch, Naushera and Jhangar, and used tanks to capture Zoji La (November 1948), securing Kargil and Leh.
• 1 January 1948: India referred the dispute to the UN Security Council; the UN Commission for India and Pakistan proposed a ceasefire, Pakistani withdrawal and a plebiscite.
• Ceasefire from 1 January 1949; a ceasefire line was fixed by the Karachi Agreement (July 1949) and UN observers were posted.

Consequences
1. Kashmir was divided: about a third (including Gilgit-Baltistan and the area Pakistan calls 'Azad Kashmir') remained under Pakistan's control.
2. The UN became involved and the plebiscite issue became a lasting dispute, since Pakistan never withdrew its forces as required.
3. Lasting hostility between India and Pakistan; Kashmir caused later wars.
4. Within India, Jammu and Kashmir received special status (Article 370) and Sheikh Abdullah headed its government.

Worked example

[4] The raiders who crossed into Kashmir in October 1947 set off India's first war with Pakistan. Name the war and explain three of its causes. (Understanding)

Try it first, then show the solutionSolution

1. The First Indo-Pak War (First Kashmir War), 1947-49 - 1 mark.
2. Kashmir was Muslim-majority under a Hindu ruler, Hari Singh, who delayed accession to either dominion - 1 mark.
3. Pakistan sponsored a Pathan tribal invasion on 22 October 1947 to seize Kashmir - 1 mark.
4. The Maharaja appealed to India; India helped only after he signed the Instrument of Accession (26 October 1947), which Pakistan rejected - 1 mark.

Answer: The First Indo-Pak War (1947-49). Causes: (1) Kashmir, a Muslim-majority state with a Hindu ruler, did not accede to either dominion because Hari Singh hoped for independence; (2) Pakistan, wanting Kashmir, sponsored a tribal invasion on 22 October 1947; (3) the Maharaja sought India's help and signed the Instrument of Accession on 26 October 1947, after which Indian troops entered, and Pakistan, refusing to accept the accession, sent its own army.

Sino-Indian disputes: Tibet and the border

(a) The Tibet issue

• Chinese takeover: the People's Liberation Army entered Tibet in 1950; in 1951 Tibet was made to accept Chinese rule by a 17-point agreement. India, unwilling to fight, accepted Chinese authority over Tibet in a 1954 agreement on trade with the Tibet region and gave up the special rights it had inherited from Britain.
• Revolt and asylum: Tibetan resistance to Chinese rule grew, and after a rising in Lhasa in March 1959 the Dalai Lama fled and was given asylum in India (end of March 1959); thousands of refugees followed and a government-in-exile was later set up at Dharamsala.
• China accused India of encouraging the revolt and 'interference'; Indian public opinion was sympathetic to the Tibetans. Relations worsened sharply.

(b) Border issues

• Western sector (Ladakh): India claimed Aksai Chin; China built a road through it linking Xinjiang to Tibet (completed in 1957), discovered by India later.
• Eastern sector (then NEFA, now Arunachal Pradesh): India regarded the McMahon Line (drawn at the Simla Conference, 1914) as the border; China rejected it as an imperialist line and claimed large areas south of it.
• Clashes in 1959 at Longju (east) and the Kongka Pass (Ladakh) killed Indian personnel; talks between Nehru and Zhou Enlai in April 1960 failed.

Worked example

[4] Explain the Tibet issue as a cause of tension between India and China. (Understanding)

Try it first, then show the solutionSolution

1. China occupied Tibet from 1950; India accepted Chinese authority in 1954 but sympathised with the Tibetans - 1 mark.
2. A revolt in Lhasa in March 1959 was crushed - 1 mark.
3. The Dalai Lama fled to India and was given asylum; thousands of refugees followed - 1 mark.
4. China accused India of interference and of backing the revolt; relations worsened - 1 mark.

Answer: China occupied Tibet from 1950, and although India accepted Chinese authority there in 1954, Indian sympathy for the Tibetans remained. When the Lhasa rising of March 1959 was crushed, the Dalai Lama fled to India and was given asylum along with thousands of refugees. China saw this as interference in its internal affairs and accused India of backing the revolt, which poisoned relations and fed into the border dispute.

Sino-Indian War (1962): immediate causes, course and consequences

Immediate causes
1. The failure of the 1960 talks left the border unsettled.
2. India's 'Forward Policy' (from 1961) set up posts in areas claimed by both sides to assert its claims; China saw it as aggression.
3. A clash at Thag La ridge near the Namka Chu in NEFA (September-October 1962), where India had set up the Dhola post.
4. China's anger over the Dalai Lama's asylum and its wish to punish India and assert its claims.

Course (brief)

• 20 October 1962: China attacked in both sectors; Tawang fell; in Ladakh Indian posts fell.
• After a pause, a second offensive in mid-November: Sela and Bomdila fell in NEFA; in Ladakh Indian troops resisted strongly at Rezang La.
• 21 November 1962: China declared a unilateral ceasefire and withdrew in the east to behind the McMahon Line, but kept Aksai Chin.

Consequences
1. Territorial: China retained Aksai Chin, its most important gain, giving it the road link between Xinjiang and Tibet.
2. Humiliation for India and a blow to Nehru's prestige; Defence Minister V. K. Krishna Menon resigned.
3. Defence modernisation: a sharp rise in defence spending, new mountain divisions; military aid from the USA and Britain, and closer ties with the USSR.
4. China moved closer to Pakistan (a boundary agreement in 1963), creating a two-front threat.
5. Domestic: the Communist Party split in 1964 partly over its attitude to China; a sense of national unity during the crisis.
6. Six non-aligned countries offered the Colombo proposals (December 1962) for a settlement, but the border remained disputed (the Line of Actual Control).

Worked example

[4] State any four consequences of the Sino-Indian War of 1962. (Recall)

Try it first, then show the solutionSolution

1. China kept Aksai Chin, its chief territorial gain - 1 mark.
2. Humiliation for India; Nehru's prestige hurt; Krishna Menon resigned - 1 mark.
3. Defence spending and modernisation rose; military help from the USA and Britain - 1 mark.
4. China and Pakistan drew closer; the border dispute remained unresolved - 1 mark.

Answer: (1) China retained Aksai Chin, securing its Xinjiang-Tibet road. (2) India suffered a humiliating defeat; Nehru's prestige fell and Krishna Menon resigned. (3) India modernised and expanded its armed forces with help from the USA and Britain. (4) China and Pakistan came closer, while the border dispute remained unsettled along the Line of Actual Control.

Second Indo-Pak War (1965): causes, course, consequences

Causes
1. Kashmir remained unresolved and Pakistan hoped for a revolt in the Valley.
2. Pakistan judged that India was weak after the 1962 defeat and Nehru's death (1964), and was keen to strike before Indian rearmament took effect; it had modern American arms (Patton tanks, Sabre jets).
3. The Rann of Kutch clash (April 1965) was settled by British mediation, which convinced Pakistan that India would not fight hard.
4. Operation Gibraltar (August 1965): armed infiltrators were sent into Kashmir to incite a rising; local people informed the authorities and it failed. India crossed the ceasefire line and captured the Haji Pir pass.
5. Operation Grand Slam (1 September 1965): Pakistan attacked in the Chhamb-Akhnoor sector, threatening India's road link to Jammu and Kashmir.

Course

• 6 September: to relieve the pressure, India opened a front in Punjab, advancing towards Lahore and Sialkot.
• Major tank battles: Asal Uttar near Khem Karan, where many Patton tanks were destroyed (Havildar Abdul Hamid won the Param Vir Chakra), and around Phillora and Chawinda in the Sialkot sector.
• Neither side won decisively; on 23 September a UN-sponsored ceasefire took effect.

Consequences
1. Military stalemate, but India held off a better-equipped army; national morale recovered after 1962.
2. Tashkent Declaration (10 January 1966), signed by Shastri and Ayub Khan through Soviet mediation (Kosygin): forces to withdraw to positions held before 5 August 1965; disputes to be settled peacefully; diplomatic, trade and economic relations to be restored; prisoners repatriated.
3. India returned Haji Pir and other captured areas, which was criticised at home; Shastri died at Tashkent on 11 January 1966.
4. Pakistan's failure discredited Ayub Khan; the USA stopped arms supplies to both; the USSR gained influence as a peacemaker; Pakistan drew closer to China.

Worked example

[4] (a) In which city did India and Pakistan sign a declaration in January 1966, and which war did it close? [2]
(b) Give two terms agreed there. [2] (Recall)

Try it first, then show the solutionSolution

1. (a) At Tashkent (USSR) - 1 mark.
2. (a) After the Indo-Pak War of 1965 - 1 mark.
3. (b) Armies to withdraw to positions held before 5 August 1965 (India returned Haji Pir) - 1 mark.
4. (b) Disputes to be settled peacefully; diplomatic and trade relations restored; prisoners exchanged - 1 mark.

Answer: (a) Tashkent, after the 1965 Indo-Pak War. (b) The Tashkent Declaration required both armies to withdraw to their pre-5 August 1965 positions (so India returned Haji Pir), and committed both sides to settle disputes peacefully, restore diplomatic and trade relations and repatriate prisoners.

Third Indo-Pak War (1971): causes, course, consequences

Causes
1. Grievances of East Pakistan: economic discrimination, under-representation in the army and civil service, and the attempt to impose Urdu.
2. The 1970 election: Sheikh Mujibur Rahman's Awami League won almost all East Pakistan's seats and a majority in the national assembly, but Yahya Khan's military regime would not hand over power.
3. Operation Searchlight (25 March 1971): a brutal army crackdown in Dhaka; Mujib was arrested; Bengali nationalists declared independence and the Mukti Bahini began guerrilla resistance.
4. Refugee crisis: about ten million refugees fled to India, a huge economic and security burden.
5. International alignment: the USA and China backed Pakistan; India signed the Indo-Soviet Treaty of Peace, Friendship and Cooperation (9 August 1971); Indira Gandhi toured world capitals to explain India's case.
6. Immediate cause: Pakistani air strikes on Indian airfields on 3 December 1971.

Course (13 days)

• India recognised Bangladesh (6 December) and, with the Mukti Bahini, advanced rapidly on Dhaka from several directions.
• The navy attacked Karachi harbour and blockaded East Pakistan with the carrier INS Vikrant; in the west Indian forces held Pakistani attacks, as at Longewala.
• The USA sent a naval task force led by the USS Enterprise to the Bay of Bengal; the USSR vetoed ceasefire resolutions in the Security Council.
• 16 December 1971: Lieutenant General A. A. K. Niazi surrendered at Dhaka to Lieutenant General Jagjit Singh Aurora; about 93,000 Pakistani soldiers became prisoners of war. India declared a ceasefire in the west the next day.

Consequences
1. Bangladesh became independent, with Mujibur Rahman as its leader.
2. Pakistan lost more than half its population; the two-nation theory suffered a blow.
3. India emerged as the leading power in South Asia; the humiliation of 1962 was wiped out and Indira Gandhi's popularity soared; General Sam Manekshaw was made India's first Field Marshal.
4. The Simla Agreement (2 July 1972) between Indira Gandhi and Zulfikar Ali Bhutto: disputes to be settled bilaterally and peacefully; the Line of Control resulting from the ceasefire of 17 December 1971 to be respected; troops withdrawn from the international border; prisoners of war later returned.
5. Relations with the USA cooled; ties with the USSR deepened.

Worked example

[4] How did the 1971 war change South Asia? Explain four results. (Understanding)

Try it first, then show the solutionSolution

1. Creation of independent Bangladesh under Mujibur Rahman - 1 mark.
2. Pakistan lost over half its population; the two-nation theory was discredited - 1 mark.
3. India became the leading power in South Asia; Indira Gandhi's popularity rose - 1 mark.
4. Simla Agreement, July 1972: bilateralism, Line of Control, return of prisoners - 1 mark.

Answer: (1) Bangladesh was born as an independent nation under Sheikh Mujibur Rahman. (2) Pakistan lost more than half its population, and the idea that religion alone could hold a nation together was discredited. (3) India emerged as the dominant power in South Asia, erasing the memory of 1962. (4) The Simla Agreement of 1972 committed both sides to bilateral, peaceful settlement and to respect the new Line of Control, and led to the return of prisoners.

India's Foreign Policy in real life

Each concept, met in an everyday situation. Read the situation, answer the question in your own words, then compare with the model answer. The one-line hook is what to remember.

Topics in this chapter

• Tibet, the Border and the Sino-Indian War of 1962

India's Foreign Policy: key facts

First Indo-Pak War

Raid 22 October 1947; accession 26 October 1947; ceasefire 1 January 1949

UN reference 1 January 1948; Karachi Agreement July 1949.

Tibet

Chinese takeover 1950; Dalai Lama's asylum March 1959

Government-in-exile at Dharamsala.

Border disputes

Aksai Chin (west); McMahon Line, 1914 (east)

Longju and Kongka Pass clashes 1959.

Sino-Indian War

20 October-21 November 1962

China keeps Aksai Chin; Krishna Menon resigns.

1965 war

Gibraltar (August), Grand Slam (1 September), Punjab front (6 September), ceasefire 23 September 1965

Tashkent Declaration 10 January 1966.

1971 war

3-16 December 1971; surrender at Dhaka 16 December

About 93,000 prisoners; Indo-Soviet Treaty 9 August 1971.

Simla Agreement

2 July 1972: Indira Gandhi and Zulfikar Ali Bhutto

Bilateralism; Line of Control.

How the board asks India's Foreign Policy

The question patterns to expect, and the method that works for each.

Tricks to remember India's Foreign Policy

Short memory aids. Say each one aloud once, then use it on a question the same day.

• Wars and their treaties

  47-49 ends in a UN ceasefire (1 January 1949); 65 ends at Tashkent ('T' for 'Third-party'); 71 ends at Simla ('S' for 'Side by side').

  Use it when: Avoids the Tashkent-Simla confusion examiners report.

• 1965 operations: 'G before G'

  Gibraltar (August, infiltration in Kashmir) comes before Grand Slam (1 September, attack on Chhamb-Akhnoor).

  Use it when: Sequencing the causes of 1965.

• 1962: 'A-M' borders

  Aksai Chin in the west (China's road), McMahon Line in the east (China rejected).

  Use it when: Border-issue answers.

India's Foreign Policy: board-level solved questions

Ordered from board level to HOTS. Cover the solution, write your own, then compare step by step.

Case-study practice (Section D style)

Read the situation, then answer every part. In the board paper this is a 8-mark question split into 2 + 2 + 4 marks.

Where the marks are

How a typical answer is split into step marks. Show every step: a right final answer alone rarely earns full marks.

Where students lose marks in India's Foreign Policy

The slips examiners see most often, and what to write instead.

• ✗Mistake: Mixing up the 1965 and 1971 wars and their treaties

  CISCE examiners' comments, 2025: candidates 'Conflated events and details of the 1965 and 1971 wars' and 'Confused Tashkent Agreement (1965) with Simla Agreement (1971).'

  Wrong working

  After the 1971 war India and Pakistan signed the Tashkent Declaration.

  Right working

  After 1965: Tashkent Declaration (1966). After 1971: Simla Agreement (1972).

  ✓Do this: Use 'Tashkent = third party; Simla = side by side'.

  Usually costs: Up to 4 marks.

• ✗Mistake: Wrong facts about the ruler of Kashmir

  CISCE examiners' comments, 2024: candidates 'Said Maharaja Hari Singh wanted to join Pakistan or named the ruler wrongly' and, in 2025, referred to 'Raja Hari Singh in the 1965 war'.

  ✓Do this: Hari Singh wanted independence, then acceded to India in 1947; he has no role in 1965.

  Usually costs: 1-2 marks.

• ✗Mistake: Not naming the war precisely

  CISCE examiners' comments, 2024: candidates 'Wrote about the Kargil War or called it just "Indo-Pak War" without "First" and the year' and omitted that India helped only after the Instrument of Accession.

  ✓Do this: Write 'First Indo-Pak War (1947-49)' and mention the accession before Indian troops moved.

  Usually costs: 1 mark.

• ✗Mistake: Wrong answer for China's territorial gain

  CISCE examiners' comments, 2025: candidates gave 'Wrong geographical identification, citing Tibet, Longju or Ladakh instead of Aksai Chin.'

  ✓Do this: China's key gain in 1962 = Aksai Chin.

  Usually costs: 1 mark.

• ✗Mistake: Writing causes when outcomes of Tashkent are asked

  CISCE examiners' comments, 2024: candidates 'Discussed Pakistani infiltration of Kashmir instead of outcomes' and 'Confused the names of the leaders who signed the agreement'.

  ✓Do this: Outcomes = withdrawal to pre-5 August 1965 lines, peaceful settlement, restored relations, prisoners returned. Signatories: Shastri and Ayub Khan.

  Usually costs: 2 marks.

Practice questions on India's Foreign Policy

Write each answer on paper first. Open the hint only if you are stuck, and the answer only when you have finished.

1. Q1 · 1 mark · MCQBoard level

   The McMahon Line was drawn at the:
   (a) Simla Conference, 1914
   (b) Tashkent Conference, 1966
   (c) Simla Agreement, 1972
   (d) Colombo Conference, 1962

   Hint

   Before the First World War.

   Answer

   (a) Simla Conference, 1914.

2. Q2 · 1 mark · Very short answerBoard level

   When did the Dalai Lama receive asylum in India?

   Hint

   After the Lhasa rising.

   Answer

   In March 1959.

3. Q3 · 1 mark · Very short answerHarder board level

   Name the Soviet leader who mediated at Tashkent.

   Hint

   Soviet Premier.

   Answer

   Alexei Kosygin.

4. Q4 · 1 mark · MCQHarder board level

   Arrange in order: (P) Operation Grand Slam; (Q) Rann of Kutch clash; (R) Operation Gibraltar; (S) Tashkent Declaration.
   (a) Q, R, P, S
   (b) R, Q, P, S
   (c) Q, P, R, S
   (d) P, Q, R, S

   Hint

   April, August, September 1965; January 1966.

   Answer

   (a) Q, R, P, S.

5. Q5 · 4 marks · Short answerBoard level

   [4] Describe the course of the First Indo-Pak War (1947-49).

   Hint

   Airlift, Valley, regulars, Zoji La, UN.

   Answer

   (1) Indian troops were airlifted to Srinagar on 27 October 1947 and saved the city, driving the raiders from the Valley. (2) Pakistan's regular army entered the fighting in 1948. (3) India held Poonch and Naushera and used tanks to capture Zoji La, securing Kargil and Leh. (4) India referred the dispute to the UN on 1 January 1948, and a ceasefire took effect on 1 January 1949.

6. Q6 · 4 marks · Short answerHarder board level

   [4] Explain four causes of the Indo-Pak War of 1971.

   Hint

   Election, crackdown, refugees, air strike.

   Answer

   (1) Discrimination against East Pakistan and the refusal to transfer power after the Awami League's victory in 1970. (2) Operation Searchlight (March 1971) and the genocide that followed; the Mukti Bahini's resistance. (3) About ten million refugees in India, an unbearable burden. (4) Pakistan's air strikes on Indian airfields on 3 December 1971.

7. Q7 · 4 marks · Short answerHOTS / competency

   [4] Analyse why India was defeated in 1962.

   Hint

   Preparedness, terrain, policy, leadership.

   Answer

   (1) Unpreparedness: India did not expect a full-scale war and its troops lacked equipment, winter clothing and roads. (2) The Forward Policy placed small posts where they could not be supported. (3) China had better-acclimatised troops and supply lines in Tibet. (4) Political and military leadership failed: confused command and over-reliance on diplomacy and on China's goodwill.

8. Q8 · 4 marks · Short answerHOTS / competency

   [4] Why did the USSR support India in 1971 while the USA supported Pakistan?

   Hint

   Cold War alignments; China.

   Answer

   (1) The USA used Pakistan as the channel for its secret opening to China in 1971 and saw it as an ally. (2) China backed Pakistan, and the USSR, then hostile to China, wanted a strong India. (3) The Indo-Soviet Treaty of August 1971 committed the USSR to consult India if attacked. (4) The USSR used its veto in the Security Council to block ceasefire resolutions until Dhaka fell, while the USA sent a naval task force to the Bay of Bengal in support of Pakistan.

9. Q9 · 8 marks · Long answerHOTS / competency

   [8] (a) Explain the Tibet issue and the border disputes that strained Sino-Indian relations. [4]
   (b) Evaluate the impact of the 1962 war on India's defence and foreign policy. [4]

   Hint

   (a) takeover, asylum, Aksai Chin, McMahon; (b) both domains.

   Answer

   (a) China's takeover of Tibet (1950) and the crushing of the Lhasa rising led to the Dalai Lama's asylum in India in 1959, which China called interference. China built a road across Aksai Chin, claimed by India, and rejected the McMahon Line in the east; clashes in 1959 and the failure of talks in 1960 hardened the dispute. (b) Defence: India raised spending, built mountain divisions and modernised its forces, which showed in 1965 and 1971. Foreign policy: idealism gave way to realism; India accepted Western military aid and drew closer to the USSR, while China and Pakistan became partners. The impact was lasting: India's security planning since has been built on a two-front threat.

10. Q10 · 8 marks · Long answerHOTS / competency

    [8] Discuss the causes and consequences of the 1971 war and explain the main provisions of the Simla Agreement.

    Hint

    Four causes, two consequences, two provisions.

    Answer

    Causes: discrimination against East Pakistan and the refusal to accept the 1970 verdict; Operation Searchlight and the genocide; ten million refugees in India; Pakistan's air strikes of 3 December 1971. Consequences: the creation of Bangladesh and India's rise as the dominant regional power, with about 93,000 prisoners taken. Simla Agreement (2 July 1972): disputes to be settled bilaterally by peaceful means, and the Line of Control arising from the 17 December 1971 ceasefire to be respected; forces withdrawn to the international border; the way opened for the return of prisoners.

Test your recall

Answer in your head or on paper first, then open the card. Pulling an answer out of memory makes it stick far better than re-reading.

1. 1.When did the Pakistan-backed tribal invasion of Kashmir begin?Show answer

   22 October 1947.

2. 2.Which road made Aksai Chin vital to China?Show answer

   The road linking Xinjiang with Tibet.

3. 3.What was Operation Gibraltar?Show answer

   Pakistan's sending of armed infiltrators into Kashmir in August 1965.

4. 4.Who signed the Simla Agreement?Show answer

   Indira Gandhi and Zulfikar Ali Bhutto, 2 July 1972.

5. 5.Which treaty did India sign with the USSR in August 1971?Show answer

   The Indo-Soviet Treaty of Peace, Friendship and Cooperation.

Quick revision checklist

The night before the exam: can you do each of these without looking?

• ☐1947-49: Hari Singh's delay; raid 22 October; accession 26 October; airlift 27 October; UN 1 January 1948; ceasefire 1 January 1949; Kashmir divided.
• ☐Tibet: Chinese takeover 1950; Lhasa rising and Dalai Lama's asylum 1959.
• ☐Border: Aksai Chin road; McMahon Line rejected; clashes 1959; talks fail 1960; Forward Policy 1961.
• ☐1962: attack 20 October; ceasefire 21 November; China keeps Aksai Chin; Menon resigns; rearmament; China-Pakistan ties.
• ☐1965: Rann of Kutch; Gibraltar; Haji Pir; Grand Slam; Punjab front; ceasefire 23 September; Tashkent 10 January 1966.
• ☐1971: Awami League victory ignored; Searchlight; refugees; Indo-Soviet Treaty; war 3-16 December; Bangladesh; Simla 1972.

India's Foreign Policy: frequently asked questions