One year of Operation Sindoor: What Changed After India Hit Terror Infrastructure Deep Inside Pakistan

This article examines India's defence modernisation following Operation Sindoor, highlighting drones, AI-enabled targeting, and a broad procurement drive including S-400 systems, Rafale jets, P-8I aircraft, and new submarines to strengthen deterrence and response to cross-border terrorism.

One year after Operation Sindoor, India is reshaping defence plans using drones, artificial intelligence and new weapons. The campaign followed the Pahalgam terror attack and involved cross-border strikes on nine targets. The response, and the large procurement drive that followed, show how India intends to handle Pakistan-backed terrorism.

Operation Sindoor launched on the night of May 7 last year was India's response to the April 22 terrorist attack at Pahalgam that killed 26 people, mostly tourists.

Indian forces struck terror facilities in Pakistan and Pakistan-occupied Kashmir, hitting nine locations and eliminating at least 100 terrorists. These included major Jaish-e-Mohammed and Lashkar-e-Taiba hubs and other camps across Bahawalpur, Muridke and several sites in Sialkot, Muzaffarabad, Kotli, Bhimber and Sarjal.

Operation Sindoor India military response and Pakistan tensions

The Pahalgam assault on April 22, which targeted civilians and tourists, triggered a rapid military cycle. Pakistan answered India’s strikes with its own attacks, though most incoming raids were stopped by Indian air defence. Hostilities eased on May 10, after senior army officers from both sides used the hotline and agreed to halt further military action.

During the operation, the Indian military relied heavily on networked drones and AI-enabled target analysis. Officials describe it as the most extensive multi-domain combat mission in around fifty years against Pakistan. Many observers saw the campaign as clear proof of India’s "political will" to answer terrorism. Prime Minister Narendra Modi also stressed that India would not accept any nuclear blackmail from Islamabad.

Operation Sindoor India military modernisation and drone focus

Across the last year, the Army, Navy and Air Force studied every phase of the clash to refine plans. The services are emphasising new unmanned platforms and advanced sensors for surveillance and precise targeting. A senior official said, "Definitely, lessons learned from Operation Sindoor are being implemented," highlighting a whole-of-government effort to build stronger combat readiness and air defence.

The months after the operation brought fast decisions on big-ticket defence deals aligned with national security priorities. Several long-discussed programmes gained approval, focusing on strike capability, mobility and resilience. In March alone, New Delhi cleared military hardware purchases worth Rs 2.38 lakh crore, signalling that the planning lessons from the conflict were translating into concrete acquisitions.

Key clearances include another five S-400 missile systems from Russia and 60 medium transport aircraft. In February, the government finally approved a long-pending plan to buy 114 Rafale fighter jets through a government-to-government deal with France. The defence ministry also backed orders for six Boeing P8-I aircraft for the Navy and a Euro 5 billion agreement for six stealth submarines from ThyssenKrupp Marine Systems and Mazagon Dock Shipbuilders Ltd.

The Rafale package comes with a diverse weapons suite designed for long-range air combat and deep strikes. MBDA’s Meteor beyond visual range air-to-air missile and the Scalp cruise missile form the core of this arsenal. Together, these systems aim to improve the Air Force’s reach and precision against heavily protected targets.

Operation Sindoor India missile and nuclear deterrence advances

India is also reinforcing the sea-based leg of the nuclear triad. In April, the Navy commissioned INS Aridaman, the country’s third indigenously-built nuclear-powered ballistic missile submarine. The SSBN programme remains highly secretive, with INS Arihant as the first boat and INS Arighat following, before INS Aridaman joined the fleet.

Missile testing has continued through the year, covering several variants of the Agni series of strategic weapons. In August, India successfully launched the 'Agni-five' intermediate-range ballistic missile, which can hit targets up to 5,000 km away. This range places almost all of Asia, including northern China, and some parts of Europe within reach.

Operation Sindoor and the Pahalgam attack have therefore become a turning point for Indian defence planning. The cross-border strikes, the focus on drones and AI, and the subsequent surge in acquisitions underline a clearer deterrence posture. India is signalling readiness to counter cross-border terrorism while steadily improving long-range strike and nuclear capabilities.