Kolkata

Interior designing is a very good option. A lot of institutes are there which are providing this career option in India.
As you are very much particular about Kolkata,
there are many good colleges in Kolkata also. Few that I know are:
J.D Birla Institute,
Glamour School of Fashion and Interiors.
Many more are there. To know more, refer to the link that will provide you information collected by Shiksha:
https://www.shiksha.com/design/interior-design/colleges/colleges-kolkata

Yes, IMI, Kolkata provides various opportunities to students to get placed. Special classes are also given to students to improve. Rest it is on student's preparation to crack the process.

Hi Shrabani,
International Institute of Photography offers full time as well as weekend courses in photography. You can directly connect with the institute to apply for the course. There is no complex criteria involved.

IIM-Calcutta is the best MBA college, in my opinion. Start preparing for CAT exam.

For admission to this college, you need to have 50% in top 4 subjects and 45% in English.
For more details refer: http://www.vckolkata63.org/admission/Eligibility_Criteria.pdf.

If you apply as a fresher (for first year), you will be eligible for almost every college in Bangalore, but if you want to apply for direct second year entry (lateral entry) then only few colleges might accept your admission due to state change.

Hi Debajyoti,
The minimum percentage is 60 in your +2 aggregate including PCM & Biology/Biotech.
For more detailed information please do visit the given link and scroll down you will get it.
http://www.sxccal.edu/admissions/SXCAdmission2017/UG2017/EligibilityCriteria.htm
All the best.