): With an eye to develop a full fledged multi-layer Ballistic Missile Defence system, India is likely to test-fire its indigenously designed and developed Advanced Air Defence (AAD) missile from the Integrated Test Range (ITR) off Orissa coast today. The AAD missile is capable of destroying any hostile ballistic missile at low altitude situation, defence sources said on Saturday. Range integration work at the ITR for the proposed trial is complete and the test is likely to be conducted today, they said. The target missile, a modified indigenously built 'Prithvi' posing as an enemy missile, would first be lifted off...