Bangalore

No, it is not affiliated to the Veltech University, RV is affiliated to the state technical university.

If your budget is very high and you belong to the above average family background, then you can go for DSATM as it is having good campus life and exposure, but if you are from average or middle average family then SIT is a better option as its fee is less and you can also get a scholarship, if appli

Both are equally good.
As you have asked to compare both so, in my opinion KIET offers high placements.

The address will be written on the admit card. So, no one can tell you that where the address of exam in Bangalore is.

See, the placements of both the colleges are almost the same and the problem is the fee if you can pay the RVC fee then opt for that, otherwise, you can drop a year.

No, engineering courses via distance mode are not recognised by AICTE. Opt for a regular course.
Regards.

Yes, biotech is a good option to choose in Bangalore. Broad scope is there in Bangalore due to various Biotech hubs and parks. We all know that biotech is one of the most in-demand and money-generating courses abroad. However, while most graduates proceed with their Masters Degree or Doctoral Degree

You can consider following colleges:
Alliance College of Engineering and Design, Bangalore Institute of Technology, Bangalore
CMR Institute of Technology, Bangalore
Dr Ambedkar Institute of Technology, Bangalore
AMC Engineering College, Bangalore