Hello Md Shahid

You must and should have pass the Class 12 and you should have marks list of class 12 unless your not eligible for the B.Tech. Every Institution will some Instructions & eligibility criteria about admission process. You may not be a merit students you must clear all your subjects in class 12. Every College will check the Original documents at the time of counselling at time your have produce your Class 11 & 12 documents. If your fail to submit the documents you are not eligibile for admission in that college. My friendly advice is to clear your exam as possible.

Hope this will helpful

Thankyou