Hello... Balram

Your question is bit unclear.

And also very vast in general. There are different cut off for different colleges and also different examinations at the same time.

The cut off depends upon following things:

Previous years trends

Previous years cut off

No of candidates

Difficulty level of the examination

Hi Aspirant. I am sorry but you have not mentioned the name of the college or university whose cutoff marks for Btech physics engineering you want to know. Without knowing that we would not be able to help you. So, please be clear and specific in your question and fill it with all the important details.