Diploma

Dear,
You are very much eligible to pursue Diploma in CSE after 10th board, through JEE for Diploma in engineering. That can also be done after +2. I think, it is better to do +2 in science stream first. Then, you have more options to go with computer course. You can pursue Diploma in engineering in CSE or B.Sc in computer science or you can do BCA or B.Tech in CSE.

Yes, you can. I am also pursuing the same from Chandigarh University.

You should opt for M.Sc in biotechnology. It would be a much better choice.
Well, M.Sc in forensic science is a better option than Diploma in forensic science.
Good luck.

You should take admission in B.Tech after diploma through lateral entry. Select CSE/IT branch.

Going for Diploma is the best option, as you get a great practical knowledge in your field. But, now a days, select college as per acknowledging that college teaches you something else in practical knowledge.

You should take diploma engineering in CSE.

No. In AMU, mode of teaching in diploma course is only english. However it is not too difficult for Hindi or Urdu medium students. So, do not worry about it. Once you qualify the entrance, language will not a bar.