<span style="color: #222222;">The Defence Acquisition Council (DAC) on Saturday approved upgradation of 17 Dornier Aircraft of the Indian Coast Guard at a cost of nearly Rs 950 crore.</span><br />'' <br />'' <span style="color: #222222;">The upgradation will be carried out by the Hindustan Aeronautics Limited. The council chaired by Defence Minister Nirmala Sitharaman in New Delhi also approved equipping of three aircraft with Pollution Surveillance Systems. </span><br />''