What should I do after B.Tech?

Well, you can go for MBA if you want to enhance your job skills which will give you an edge during company placement or you can sit for GATE. Also, there are several vacancies in different organisations/departments (namely ISRO, Naval Academy, ONGC, IOC, etc.) All the best.

You can go for MBA for all round development.

Go for M.Tech, MS or MBA. All the best.

You should join some job and take experience or otherwise if you are getting admission in reputed institutute like IITs for M.Tech course than you can pursue that. Also if you get chance to pursue MS from foreign universities that will also be a very good option. Rest it depends on you and you can j