Hello Amrita..

Thanks for contacting Careers360...

For marketing IBS Pune is Best.
For Finance IBS Mumbai is best.
Above all IbS Hyderabad is the best.
Talking about IBS Kolkata..
I haven't studies their but I can atleast say that if you are passionate about ur Masters or PGDM, you will definetely get a good placement.
College is also responsible for the placements but its we ,who have to be fully prepared in this competitive world to face everything we get in our way.