sooner or later india has to have a dedicated long range strategic bomber. su-30 is a good multi role aircraft which can perform strike roles but it will not be as effective as a dedicated strategic bomber.
here is the reason. (for the understanding of everybody i am using plain terms and not technical terms). cruise missiles are operate at high speeds, so when they are launched, they disturb the air flow around the aircraft which can result in engine problem as engine doesnt get adequate supply of air. this can result in engine failure. hence it is imperative that we look for other options. till then a su-30 will do.