what is any other subject for Btech except math physics

Hii,

Engineering is a section of technology and science that focuses on the design of engines, machines, structures and electrical systems. Engineering is deeply rooted in mathematics principles.

so, for that you need to study physics and Maths in the first year which is common subject for every branch students .

And maths may be in 2nd year also.

But Basically when you will join your department in the 2nd year of your engineering then the branch which is not having physics and as a major subject is

CSE Computer Science Engineering

IT Information Technology

In these 2 branches you learn about computer science and programming subjects.

for your knowledge below is the list of subjects which CSE students learn in engineering

1. C language
2. C++ language
3. Data structure
4. Digital Electronics
5. Microprocessors
6. Java
7. Python
8. Operating system
9. Digital electronics
10. Computer Networks
11. Database management
12. Artificial intelligence
13. Machine learning
14. Cloud computing
15. Compiler design
16. Cyber security
17. Computer Graphics
18. Iot internet of things

So, basically  physics does not plays that important roles in these 2 branches.

Hope this will help you,

All the very best!!