Hello student ,

Yes you can persue Btech after graduation . So suppose if you have done BSc then after completing B.Sc through the lateral entry scheme which is offered by most of the Engineering colleges in India. The lateral entry is only given to candidates who have either completed diploma in Engineering or B.Sc course. Further the criteria are as follows -

1. Must be graduate in science stream like B.sc. With minimum 55% marks.
2. Must have taken mathematics as one of the compulsory subject in B.Sc.
3. Don't have any suply in any semester.

Hope it helps !