I hope you are doing good. I would glad to aware you that their are various top notch colleges in india which dual btech+mtech course in india. Some names of the colleges are as follow:-

1. Indian Institute of Technology, Banaras Hindu  University (BHU), Varanasi

2.National Institute of Technology (NIT), Hamirpur

3. National Institute of Technology (NIT), Agartala

4. Tezpur University Assam.

5. MIT Art, Design and Technology  University , Pune

6. Noida International  University (NIU), Noida

Hope you found this answer helpful. Good luck for your future