Science

Yes. Please apply on www.nuv.ac.in

Hi Isher,
Chances are there. More than 92% is usually recommended for Science streams. You must still keep checking their websites for the latest cut-off declarations for admission.

First of all, I would like to tell you that both the colleges are not good enough to have core electronics placement. (That is the worst part of this field). It's good for students who want to pursue Masters or M.Tech. If you are looking for a job after BE, then you will have to compromise and work in IT industry. Both branches can appear for Telecommunication placements but EXTC has better cards there. Think twice before taking these fields. But if you have only two options, then choose Somaiya.
Hope this helps. All the best :)

Of course, yes. You don't need to study maths for bio science.

Yes, but you have less chances (around 75% chances) that you can get admission into those colleges at this rank, because lateral entry depends on the basis of vacant seats available in the second year.

No, as you have not scored the required marks.

Physics is mandatory for BE. In your 1st and 2nd year, you may face physics. So, you should be ready for it.

The admission process is online. You will have to fill up a form and submit the processing fee. Once the process is complete, they will generate a merit list of selected candidates. If your name is on the list, you will have to visit the campus with relevant documents.

No. Suggest your friend to complete his 12th first. After that, he could take admission in B.Tech CSE.