In what could be a major boost for self-reliance in the defence sector, India is indigenously developing a three-layered long-range surface-to-air missile (LRSAM) defence system which would be able to strike down enemy aircraft and missiles at around 400 Km ranges. The proposal for developing a three-layered long-range surface-to-air missile system is at an advanced stage in the Defence Ministry and is expected to be taken up for clearance soon, defence sources told ANI. The over USD 2.5 billion project will help india to be part of an elite group of militaries with indigenous capabilities to shoot down enemy assets in the air from such ranges, they said. The missile system will have three layers of surface-to-air missiles, which would allow it to hit targets at different ranges. The surface-to-air missile system development work has been taking place as India worked with Israel to develop the medium-range surface-to-air missile system MRSAM which can hit aerial targets at 70 plus kms.