Hi Shivansh,

Yes, your brother can apply for B.Tech CSE or B.Tech Fire & Safety also. As, he has applied for B.Tech previously, he is eligible. I mean to say that the eligibility criteria for all the B.Tech branches are just the same.

Refer here for more info - https://www.careers360.com/courses/computer-science-engineering-course

Feel free to ask doubts in the Comment Section.

I hope this information helps you.

Good Luck!