Hello Sudeep

there are no. of exams you can give as a science student

For Engineering you can give

• JEE
• WBJEE
• KIITEE
• SRMJEE
• NATA
• AP EAMCET
• TS EAMCET
• BITSAT

FOR MEDICAL ONLY ONE

• NEET

I will attach a link down below that will give you names and details of all exams ad even a link where it will tell you exams according to colleges so check them out

https://engineering.careers360.com/articles/top-engineering-entrance-exams-in-india

https://engineering.careers360.com/exams

hope this helps you