Indian Defence and Strategic Weapons

The Indian Navy operates submarines as part of its underwater warfare capabilities. Submarines are exclusive to naval forces - the Air Force operates aircraft, the Army is land-based, and the Coast Guard focuses on coastal patrol but does not operate submarines. The question has minor grammatical issues.

The Folland Gnat, a lightweight fighter aircraft used by the Indian Air Force, earned the nickname 'Saber Slayer' during the 1971 Indo-Pak war. It performed exceptionally well against Pakistani F-86 Sabres, shooting down several without a single Gnat lost in air-to-air combat, leading to this famous moniker.

Indian Army used PT-76 amphibious light tanks in the 1971 war, particularly in the Battle of Garibpur. Patton tanks were used by Pakistan, M24 Chaffee was an older American tank, and PT-90 doesn't exist (T-90 is a different, much later tank). The answer is correctly identified as option B.

Mukti Bahini was the freedom fighter force that fought alongside the Indian Army against Pakistan during the 1971 Bangladesh Liberation War. The name means 'liberation army' in Bengali. Other options like 'Bangla Liberation Front' were not the official name of this guerrilla force.

The M18A1 Claymore is a US-invented directional anti-personnel mine widely used globally. Landmines collectively have killed or maimed tens of thousands of children according to UN/UNICEF statistics, though this specific figure may be attributed to broader landmine casualties.

Field Marshal R.M. Carver, the British Chief of the Imperial General Staff, visited Longewala after the 1971 war to study the battle. The visit underscored international military interest in the unique defensive victory. The other names are incorrect.

Operation Vijay was launched by the Indian Army in May-July 1999 to recapture territories infiltrated by Pakistani forces during the Kargil War. Operation Parakram was the 2001-2002 standoff, Operation Bluestar (1984) dealt with Golden Temple, and Operation Avalanche is a fictional name.

India has the world's third-largest active military personnel, after China and the USA. The Indian Armed Forces indeed comprise the Army, Navy, and Air Force as the statement correctly identifies.

The T-90 Bhishma is India's current main battle tank, imported from Russia and manufactured under license. India also operates T-72 Ajeya (older) and indigenous Arjun tanks, but T-90 is the primary frontline MBT. The T-80, T-70, and T-62 are not India's main battle tanks.

India is jointly developing the Fifth Generation Fighter Aircraft (FGFA) with Russia, based on the Sukhoi Su-57. While India has partnerships with other nations, the 5th-gen project is specifically with Russia. France supplies Rafale (4.5-gen), Israel provides avionics, and US deals involve F-21 proposals.

Akash is India's medium-range surface-to-air missile with a range of approximately 25 km (up to 30 km in newer variants). It's designed to target aircraft, helicopters, and drones. 2 km is too short for SAM, 50+ km is long-range (like Astra), and 70 km exceeds Akash's capability.

India signed an agreement with the UK (United Kingdom) in 2004 to procure 66 Advanced Jet Trainer (Hawk) aircraft for the Indian Air Force. The deal was worth approximately £800 million and the aircraft are used to train pilots before they transition to frontline fighter jets like the Su-30MKI.

The Param Vir Chakra is India's highest military decoration for gallantry, awarded for the most conspicuous bravery or some daring or pre-eminent act of valour or self-sacrifice. The Vir Chakra and Maha Vir Chakra are lower-level military awards, while Bharat Ratna is a civilian award.