Problem is, as far as BMD or even ASAT is concerned, maneuverability is not big an issue like that in case of a SAM. A REV or a Satellite does have velocity, but not the level of maneuverability of a fighter.What happened to Ashwin (AAD based)??
So now what is the maneuverability level of AAD? So a AAD based SAM is noble idea, but IMO it would better to have a two staged one. The first stage derived from AAD. SFDR on 2nd stage would be an added lethal factor to it.
Long back I have written a mail to someone on the aspect of modifying Shaurya into a SAM.
@patriots