"From 2011-12 to 2012-13 and current year, 22 fighter aircraft including 10 MiG-21s and 18 helicopters of armed forces have crashed," Defence Minister A K Antony said in a written reply in Lok Sabha.
In these accidents, apart from the loss of aircraft, 44 defence personnel and five civilians lost their lives, he said.
Replying to another query, the Defence Minister said the government has plans of operating the MiG-21 Bison aircraft till 2025.
On the investigation into the VIP chopper deal, he said CBI had earlier frozen the accounts of former IAF chief S P Tyagi and his relatives.
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"However, subsequently all the bank accounts have been de-frozen as per a court order, imposing certain conditions on the bank account holders," he said.
On the ceasefire violations by Pakistan, Antony said in the last six months, there have been 33 such cases in which one Indian soldier has died while three have been injured.
On the devastation caused by the floods in Uttarakhand, the Minister said around 48.3 kms of roads in stretches of strategic importance with BRO have been washed out.
The roads of strategic importance have been built along the China border, he added.