Dear Student,
For doing MBA you first need to complete your graduation from any stream as MBA is a post graduation course so for it you first need to complete your graduation. For getting admission in an MBA college you need to appear for CAT but only on fulfilling the minimum eligibility criteria which is of having minimum 50% in your graduation, there's also a relief of 5% in it for SC and ST students. If you fulfill the eligibility criteria you may apply for CAT and should appear for it and you'll be provided an MBA college based on your percentile in it. The fee structure and application form dates varies from college to college and you haven't mentioned any specific college, but applicactions have now started and I recommend you to look for applying for it on the college's official website. Hope this might help you.

For Admission,  You have to clear CAT(Common Aptitude Test)  in the month of Nov/dec.
For Registering for CAT,  U have to visit CL for Counselling in CAT.

Preparation for CAT is Already Started.
Test Score in CAT is QA, VA& RC, DI& LR.
CAT is Conducted by IIM Every year.

Fees,
It almost 4 - 5 lakhs in IIM
U have to choose which region .

Thanks,
Azim