Orissa

Dear debashish. find out near to you TIMES,IMS, etc organisations that provide CAT coaching. apart from that you have to prepare on your own by getting material like english grammer authors Wren and Martin, Barrons book for Vocabulary logical reasoning etc. RS agarwal helps for Aptitutde.such that in the market several books areavailable .start preparation from your end.

Dear Prince Singh,
Its a good decision to choose management sector in further education. Shiksha have better answer for your problem so you may visit on below link:
https://www.shiksha.com/bba/colleges/bba-bms-bbm-bbs-colleges-in-bhubaneswar
Also i suggest here some institutions name:
1. Arya School Of Management & Information Technology
2. Capital Computer College
3. DAV School Of Business Management
4. Directorate of Distance & Continuing Education (DDCE)
5. Gyana Bharati
6. Kalinga College of Management & Technology
7. Sillicon Valley Institute of Management. And Computer
8. Academy of Management. and Information Technology (AMIT)
Best of Luck!

You have already arranged it dear.
All the best.

I'm sorry I've no idea about sambalpur IIM, but I think Placement wise the location of SIMSREE will always have an edge.

avg salary for both of them is 4lacs for freshers, but kiit has an upper hand since placements are better and brand name is more recognized.
https://www.shiksha.com/mba/course/master-business-administration-kiit-school-management-bhubaneswar/128317

No
There is a cutoff in jee main exam