West Bengal

Hi,
Yes, its a distance course offered by National Institute of Personnel Management, West Bengal (NIPM).
https://www.shiksha.com/mba/course/post-graduate-diploma-in-personnel-management-national-institute-of-personnel-management-west-bengal-nipm-jadavpur-kolkata-23544

There are no good colleges in Kolkata. You may go for Universal Aviation Academy or UA in Tamil Nadu.

Currently, there is only one college which offers distance/correspondence courses in M.Sc. Chemistry from Siliguri, which is Amity Directorate of Distance and Online Education, Amity University.
Regards.

Hi Soumyadip!
There is no specialised course like Wildlife photography or landscape photography. I would suggest you to take a course in professional photography which will teach you every aspect about photography and then you can use that knowledge to be a photographer in your chosen field. Here are some of the great institutes in Kolkata from where you can pursue a course in Photography:
1. International Institute of Photography
2. National Academy of media and events
3. National Academy of Photography
4. Birla Institute of Management and Futuristic Studies.

Hi there! Yes there is cut off percentage to get selected for B.Com course in St. Xavier's College, Kolkata. It differs from board to board.

The placements for Amity-Kolkata is good as far as I know because many of my seniors have been placed in very good companies like Delloite, Indusland Bank, ITC, etc.