Colleges in Mumbai

No, your percentile is too low. But maybe you can try branches like PPT (printing and packaging technology). But I wouldn't be too confident about it honestly.

No. But B.Tech and BE are basically the same programmes with the same value. There isn't much difference.

Selection for B.Tech is done on the basis o fMHT CET or JEE Mains score followed by counselling. For B.Pharm, candidates are selected on the basis of MHT-CET score followed by counselling conducted by DTE, Maharashtra. Admission to M.Pharm is done on the basis of GPAT score. For M.Tech, candidates are selected on the basis of GATE score or Written Test conducted by the institute. Admission to M.Sc is done on the basis of merit in the qualifying examination. Selection to Ph.D is done on the basis of the written test followed by the interview.

Hello,
Go to this link and predict it:
https://www.shiksha.com/b-tech/resources/jee-mains-college-predictor
All the best.

Hardware Institute of Career and Education Development (GICED), Mumbai is the best college in Mumbai for interior designing.

You may go to this link you will know the fees as well as placement packages and everything
https://www.shiksha.com/design/interior-design/colleges/colleges-Mumbai-all

Yes, there is a chance for you to get admission in computer science in DJ Sanghavi, but you might have to wait till the last round.