West Bengal

Besides IIT, I would recommend UEM-Kolkata that is at your location and has good placement record with best assistance provided and fee structure is around Rs.40000 per semester.

Dear,
Yes, you can pursue the same provided you are fulfilling the eligibility criteria for doing M.Sc from your preferred university.
Best wishes.

Hello Rnjita,
IIT - Kharagpur indeed has aeronautical engineering branch. There are more colleges offering this branch of engineering in West Bengal.
You can check the below mentioned link:
https://www.shiksha.com/b-tech/ranking/top-engineering-colleges-in-west-bengal/44-2-127-0-0

Following are the good institutes for journalism and mass communication in Kolkata:
Future Media School
Srimati Techno Institute
International Academy for Certification and Training (IACT)
iLEAD Institute of Leadership, Entrepreneurship and Development

To bell the CAT, is tricky you need self motivation and persistence as the training institute only guide you a path as CAT has no exact syllabus. Start self initiative by downloading the Hindu editorial application for CAT English vocabulary and grammar. You are the best teacher of yourself. Feel free to ask and be sure with CAT higher score.

Hello Shafquan,
Please refer to the link below for the most up to date information on interior designing colleges in Kolkata:
https://www.shiksha.com/design/interior-design/colleges/colleges-kolkata

BIBS is decent and has good 80% placements at 4-5 LPA as average salaries, overall brand value is at par with colleges below rank 50. All the best ahead.

Hello Jhilik,
I understand and appreciate your interest in pursuing BCA from NSHM, Kolkata. I would like to inform you that the total fee for the course is 3.7 lakh. For your reference and other relevant information regarding BCA in NSHM, Kolkata, kindly check the link below:
https://goo.gl/bRY8uc
I hope this answers your question. If you have any further questions, kindly revert.