Kolkata

Dear Rishabh,
Both the institutes mentioned by you are equally good and thus it will be very difficult to tell which one will be the best option. However, we can help you with the parameters that you can keep in mind while choosing an institute among them. You can consider the below parameters
1) Faculty,
2) Affiliation / Recognition
3) Course Material,
4) Quality Education,
5) Fees
6) Infrastructure
7) Success Rate.
8) Placement
9) Top recruiting companies.
Also, if possible go through the alumni speak section to get an idea what the alumni thinks about the institute.
Hope this information helps. Please feel free to revert.
Wish you luck.

VETA
The brtish Institutes
Inlingua

yes. just search this college on siksha.com and download its brochures.

Dear Rahul
St. Xavier is better

Dear Arnab,
For MBA in kolkata there are some good options apart from IIM, Below I', providing you link over there you can choose among as per your own criteria.
https://www.shiksha.com/mba/colleges/mba-colleges-in-kolkata
all the best

Chhanda, you can get admission in a govt.college if you have given JEE exam or WBJEE exam and scored well in it.
If you have not given it, then route towards private universities which offer you admission on JEE scores/ tests conducted by them/ your marks in 12th. Some of these also offer good scholarships based on any one of the above mentioned admission criteria.