India

SRM University Delhi NCR Sonipat is best to pursue B.Sc. In physics. The Department of Physics at SRM University offers a wide range of courses at the level of Undergraduate and Postgraduate. The focus of the Department is to develop a strong background in the fundamentals of Physics while providing training in the multidisciplinary fields including Bio-Photonics, Medical Physics, etc. The academic-curriculum of the Department is designed to encourage out of the box thinking with intent to provide scientific solutions at par with the requirement of society. https://www.srmuniversity.ac.in/.

SRM University Sonepat is best. The SRM Educational Group as a community has over 80,000 students and 4,500 staff spreading over seven campuses in India. The SRM Group has earned the best teaching quality rating and a strong research record and offers a wide range of undergraduate, postgraduate and doctoral programs in Engineering & Technology, Management Studies, Medicine and Health Sciences, Law, and Science & Humanities. Today, ours is a broad-based, research-intensive institution with a global reach. https://www.srmuniversity.ac.in/.

Yes Harsh maybe you will get admission as it will also depend on your category and no. Seats allocated for same category.

The chances of getting B.Tech CSE at Techno India Salt lake Kolkata are moderate. However following are the other options for you.
1. Mechanical
2. EIE
3. Civil.

The following Institutes in India are offering the B.Tech Electronics and Computer Engineering programme.
1. SRMIST, KTR/ RMP/ VDP& NCR
2. J. B. Institute of Engineering and Technology, Hyderabad
3. REVA University Bangalore
4. K L University, Guntur
5. GNA University Phagwara.