raja doesnt have support from common man here
dmk party has mobilised ppl by promising biriyani + cash + free transport + liquour
Adding to what was earlier mentioned my recommendation would be
a) Give one mock test (GMAT prep software) without any prep whatsoever.
b) Start preparing in different sections.
c) Maybe after a month of preparation start giving MGMAT mock tests with a gap of 7-10 days each.
d) By the time you finish these tests, you will be done with 2 months of prep.
e) After giving the first 3 MGMAT tests if you feel that you need more prep, increase the gap of test to around 2 weeks.
f) Finally give the second mock test (GMAT prep software) few days before the actual GMAT date.
You can tweak the above as per your choice.