B.Tech

There are many good engineering institutes you can look for like SRM, Satyabhama, Anna University.
Check the below link:-
https://www.shiksha.com/b-tech/ranking/top-bio-technology-colleges-in-chennai/54-2-0-64-0

You have to qualify JEE Mains and Advanced exam to get admission in this college.

Yes, this is good only if you are working anywhere with your distance learning and are in your core field.

It will depend on you that what you want to do because you must have left your B.Tech for any reason. If you tell me your interests I might be able to provide you some good ideas.

No, this is not possible. You have to score a rank under 50 thousand to get into a good college.

Well for lateral entry, the required percentage is 65% but some college provide admission at 60%. But for that, you have to score good in LEET entrance exam.

First of all, let me tell you that no college in India provides 100% placements but I just want to recommend some good colleges which include PSG, Thapar, Manipal-Karnataka, VIT-Vellore and BMS-Karnataka.

Hello Subhajit,
It's the best you can think of. This degree will get you into a different sphere altogether. You can seek lateral entry in the 2nd-year of engineering in any college of your state following rules prescribed by your state or using Diploma as equivalent to 12th, you can seek admission i

Yes, it would be preferable to learn basics of computers before starting B.Tech in computers. Basics of C/C+, Java programming will be very useful for the next 4 years.

Hello Akash,
A Diploma is a Diploma and a degree is a degree. You can call by any name. Three years course after 10th. Lateral admissions to 2nd-year of engineering are allowed in a majority of colleges. Rules for this are state specific.
You can raise a further query to clarify.