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CHRONOLOGY OF INDIAN NATIONAL SECURITY (1947–2026)

National Security & Defence Timeline

Key operational, doctrinal, technological, and statutory milestones shaping India's national defence architecture since Independence.

1947–1948OPERATIONS

First Kashmir War & Airlift to Srinagar

1 Sikh lands at Srinagar airfield on 27 October 1947; Indian Army and RIAF secure Srinagar Valley, Leh, Kargil, and Poonch; Major Somnath Sharma awarded India’s first Param Vir Chakra.

1950CONSTITUTIONAL

Republic of India & Gallantry Awards Instituted

On 26 January 1950, the President of India becomes Supreme Commander of the Armed Forces; Param Vir Chakra, Maha Vir Chakra, and Vir Chakra are instituted.

1958TECHNOLOGY & R&D

Establishment of DRDO

Defence Research and Development Organisation (DRDO) formed by amalgamating Technical Development Establishments with the Defence Science Organisation.

1962OPERATIONS

Sino-Indian War (Ladakh & NEFA)

High-altitude frontier conflict across Aksai Chin and NEFA; legendary last stand of 13 Kumaon under Major Shaitan Singh at Rezang La (18 November 1962); triggers deep mountain-warfare modernisation.

1965OPERATIONS

Indo-Pakistani War of 1965

Capture of Haji Pir Pass and decisive armoured victory at the Battle of Asal Uttar ("Patton Nagar"), where CQMH Abdul Hamid destroys multiple Patton tanks.

1971OPERATIONS

Bangladesh Liberation War & Operation Trident

13-day tri-service blitzkrieg resulting in the creation of Bangladesh and the surrender of 93,000 Pakistani troops at Dhaka — the largest military surrender since WWII.

1983TECHNOLOGY & R&D

Integrated Guided Missile Development Programme (IGMDP)

Launched under Dr. A.P.J. Abdul Kalam to develop Prithvi, Agni, Akash, Trishul, and Nag indigenous missile systems.

1984OPERATIONS

Operation Meghdoot (Siachen Glacier)

On 13 April 1984, Indian Army and IAF pre-emptively secure Bilafond La, Sia La, and the Saltoro Ridge, establishing permanent control over the world’s highest battlefield.

1998STRATEGIC DETERRENCE

Operation Shakti (Pokhran-II) & Nuclear Doctrine

India conducts five underground nuclear tests at Pokhran and articulates a credible minimum deterrent posture with No First Use (NFU) and massive retaliation.

1999OPERATIONS

Kargil War (Operation Vijay, Safed Sagar & Talwar)

Indian Army and IAF recapture Tololing, Tiger Hill, and Point 4875 at 16,000–18,000 feet; Kargil Review Committee catalyses the creation of HQ IDS and DIA.

2019–2020INSTITUTIONAL REFORM

Chief of Defence Staff (CDS) & Department of Military Affairs (DMA)

India creates the post of Chief of Defence Staff and establishes the Department of Military Affairs (DMA) inside the Ministry of Defence to drive tri-service jointness.

2022INDIGENISATION

Commissioning of INS Vikrant (IAC-1)

India commissions its first indigenously designed and built 45,000-tonne aircraft carrier at Cochin Shipyard Limited with 76% indigenous content.

2026INSTITUTIONAL MILESTONE

Defence Budget Crosses ₹7.85 Lakh Crore & Defence Observer PRGI Registration

Union Budget 2026–27 allocates ₹7,84,678 Crore to MoD; Defence Observer receives statutory PRGI Certificate of Registration (DLBIL/26/A7836, dated 09/09/2026).