IN has always been way ahead of its counterparts in laying down NQRs and also stick to them. India is in a unique position compared to anyother nation when its comes to IOR. Just the way we have Himalayas which offer certain amount of natural defense, similarly the entry points to IOR are such that we ca choke them with least effort including for subs. The biggest threat to a SSBM sub is a SSN sub. USSR had created Akula class as the escort subs for their bigger SSBNs to hunt and destroy the enemy SSNs. In our case for next 100 yrs, its PLAN subs that we need to take of. Once our SSBNs are safe in IOR, they can't be destroyed or taken out by any other SSN or any known weapon. that gives us very credible second strike capability. an MIRV equipped SSBN fleet is what we need and IN has done very good job in deciding its future force structure and developing those capabilities in house. Many of you have written about MESMA AIP but what DRDO has developed is the finest and best system in the world. Unlike IAF and IA who give up on DRDO and go for import, IN stays with DRDO and helps them. The case of Scorpene is their for everyone to see. IN refused to bite the import bug by refusing MESMA and stood firm with DRDO AIP.