2015 also saw a major ambush in Manipur which left 18 soldiers dead while some senior officers were killed in anti- insurgency and counter-terrorism operations in Jammu and Kashmir.
The year started with the controversial Coast Guard operation on the intervening night of December 31 and January 1 which left a suspected Pakistani boat in flames.
A surprised Defence Ministry and the Coast Guard were at pains rebutting his claims which finally led to his sacking earlier this month after court martial.
In January, the government removed Avinash Chander, chief of Defence Research and Development Organisation (DRDO), 15 months before his contract was to end. It left everyone surprised and the government took nearly four months before S Christopher was appointed as the new DRDO chief and G Satheesh Reddy took over as the Scientific Advisor to the Minister after the post was split.
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The original tender was given a quiet burial as the government decided to go in for only 36 Rafales rather than the 126 that was initially envisaged.
The cost negotiations of the tender had been going in for over three years and had reached a stalemate.
The year also saw work on the new Defence Procurement procedure (DPP). Though it was set to come out by March, the new government found the task rather difficult and the DPP is yet to be out.
Chinese submarine forays into the Indian ocean under the garb of anti-piracy operations kept the Indian Navy on its toes.
(Reopens DEL 11)
Among the major proposals of capital acquisition cleared in 2015 was the decision to buy 145 BAE's M777 Ultra-Light howitzers at a cost of Rs 2,900 crore, the first such deal since the Bofors scandal.
The delivery of Apache would commence from July 2019. The attack helicopters are critical combat assets utilised for employment in Anti-Tank Guided Missile role, counter- insurgency operations, suppression of enemy air defences among others.
Attack helicopters offer unique offensive capability including support to Army Strike Corps and these capabilities are also required at high altitudes in the mountainous terrain on our Northern borders, not available hitherto.
Chinooks are critically required to support infrastructure build-up in mountainous regions. Heavy bridging and road construction equipment can be airlifted only by this class of helicopters.
The Indian Army successfully test fired the advanced version of BrahMos Supersonic Cruise Missile from Car Nicobar Island to operationalise another regiment of the weapon system.
On April 9, Block III variant of BrahMos, with steep dive capability was launched from a Mobile Autonomous Launcher.
Akash Weapon System was inducted into the Indian Army on May 5. It is an indigenously developed supersonic short range surface-to-air missile system with the capability to engage a wide variety of aerial threats like aircraft, helicopters and UAVs up to a maximum range of 25 km and up to an altitude of 20 km.
The OROP which will cost around Rs 8,000 crore extra every year is expected to remove the pension anomaly that exists in defence service personnel of the same rank having the same number of years in service.
Another major achievement of the armed forces was the
rescue and relief operations carried out outside the Indian borders.
On April 25, a severe earthquake of very high intensity jolted the whole of Nepal and adjoining areas of India.
IAF launched its biggest ever disaster relief operation in foreign land to provide relief and support to Nepalese people.
IAF planes and helicopters undertook 1,636 sorties amounting to a flying effort of 863 hours when they evacuated nearly 780 casualties which includes 121 foreign nationals.
They also rescued 5,188 people from various forward and quake-hit areas. As part of 'Maitri', 18 medical teams and one Field Hospital were deployed and 10 Engineering Task Forces set up.
Besides the Nepal operation, Indian Navy ships and IAF planes in coordination with the Yemen government and the MEA launched a massive evacuation operation in the civil war torn country in March, where particularly naval ships were given the responsibility of evacuating all Indian nationals stranded at various locations.
First they were evacuated from Yemenese port cities to Djibouti and then Air India ferried them back from Sanna to Kochi and Mumbai.
The year also saw commissioning of INS 'Vajrakosh' - the latest establishment of the Indian Navy at Karwar in Karnataka which will act as a missile hub.
The first sea trials of indigenously-developed nuclear submarine INS Arihant also took place.
The government took the decision of building a National War Memorial to honour defence force personnel who were martyred in wars after Independence in 1947.
Rs 500 crore has been allocated for the memorial which will be located near India Gate. A war museum will also be constructed. The entire project would be completed in five years.