India Defence News: India's apex defence procurement body, the Defence Acquisition Council (DAC) Thursday cleared the procurement of indigenously designed and developed 97 Light Combat Aircraft Tejas Mk 1A and 156 Light Combat Helicopters from state owned aircraft and helicopter manufacturer Hindustan Aeronautics Limited. The approvals also involve other major defence procurements and upgrades entailing an expenditure of around $27 billion (Rs 2.23 lakh crore).