you may say this but the govt has other worries, which it cannot agree publicly, its better to wait and watch, aand in near feature no strategic stuff is going to come from america and India is not in a mood to antagonize Russia, India will maintain balance buying stuff from Russia, France and and try to increase the share of american stuff, this is not going to happen in over time, you may not believe that even now the american strategic think tank thinks that Pakistan is an useful ally and they will use it to create mischief, both india and america needs time to come off age and it will happen gradually not in a go, you can see this for your self
that's why tankers are placed far away from the main fleet which has an escort and guard boats