B.Tech

You don't need to have an income certificate issued after 1st of April. According to the new rules of state government income, certificates are valid up to 1-year. So if you have an older certificate. You can go with that for your counselling. Good luck!

Hello Suraj,
As per your rank, your chances are slim to get admission in good colleges, however, check here to get more insights of the colleges and branches.
https://www.shiksha.com/b-tech/resources/mhcet-college-predictor

For better career opportunities, B.Tech will be a good option as compared to B.Sc.

If you are in Mumbai, try with Don Bosco or for Agnels. Moreover, if possible try for Manipal Institute of Technology (NRI quota) where your family can fund you. Lovely Professional University and Amity are also good options.