Hi, Firstly, I hope you have graduated in any discipline with 50 percent marks (45 percent for SC/ST). The above are necessary M.B.A. entrance conditions.
Secondly, decide in which field you wish to pursue an M.B.A. There are several choices like Marketing, Finance, HR, Materials Management etc.
Next, you should aim to do your M.B.A. from a well-known institute like IIM, Symbiosis, FMS, IGNOU etc. Also try to do a full-time residential course. You will have to clear challenging entrance tests and interviews, but your career and job chances after graduation will be excellent. Please approach the respective websites for entrance details.