Hello Gaurav, i don't think there is any standard coaching institutes which would take you in for 6 months. The least time course for preparation is at least of 1 year. You can take part in only examination course in institutes like FIITJEE, ALLEN, AAKASH, PACE and others. You would have to give only test for 6 months. You can also refer to the study materials during this time which would be very helpful.