Hello there,
If you are asking about the documents required for admission process, then they are as follows:
1. 10th Marksheet
2. 12th Marksheet
3.  Scorecard of the entrance exam
4.  Transfer certificate
5. Caste certificate and it's validity certificate (if applicable)
6. Domicile certificate
7. Photocopy of Aadhar card
8. Your passport size photograph
If some other documents are mentioned, you should carry those along with these documents.

Hope this answer helps you.
Good luck!!

Hello,

The eligibility criteria for admission to B.Tech CSE is to have completed class 12 with a minimum of 45% in  Physics, Chemistry and Mathematics.The admission for the same is mostly  through an entrance test conducted by the institution.Some of the popular entrance tests held for admission to B.Tech courses are the JEE Mains, JEE Advanced, BITSAT, VITEEE etc.There might be slight variations in the eligibility criteria for different institutions.Some universities rely on the state level entrance test for admission processes.You should score above the prescribed cutoff marks to be eligible for admission.

Hope this was useful.