Science

They change the fee structure every year. So, to know about the new fee structure, you have to go through the official website.

Contact your college. They may allow you to rejoin, if it is with norms of that university. All the best.

Hai Negi,
Kindly refer the following link to know about different career options after class 12th Science
https://www.shiksha.com/careers. Choose better one on your interest & Passion.

B.Pharma D
B.Sc in zoology, B.Sc in chemistry, B.Sc in physics, B.Sc in biochemistry, B.Sc in nursing, B.Sc in Microbiology, B.Sc in Environmental Science, B.Sc in biology, B.Sc in agriculture, B.Sc in Forensic Science, B.Sc in genetics any many more. )
B. F. Sc (Fisheries Science)
BHMS
BPT etc.

Engineering, B.Sc, BCA, BBA, PGDCA and D.Ed.

May 5, 2019. You can get the full details here:
https://www.shiksha.com/university/soa-siksha-o-anusandhan-university/saat-exam

Kindly visit this link:
https://www.shiksha.com/college/shri-dharmasthala-manjunatheshwara-college-ujire-karnataka-other-25105/reviews#180339

Yes, you can go for B.Com honours even if you don't have mathematics in your class 12th board. Your score in class 12th board is good enough to get you a seat for B.Com in your locality.
Best of luck.

She can get admission in both integrated as well as B.Tech, as per her interests. She is eligible for both, as her rank is good in both. I would suggest her to opt for computer science and engineering as job opportunities are high in this branch.
Best of luck.