Searching for Good coaching Institute in Bangalore for GMAT

Dear All,I am preparing for GMAT and planning to give it in the month of Sept 09. Being new, I do not have any course material for preparation. Does OG11 Sufficient? Fot Mathematics doesn’t it need to have something which would teach basics? Pleas…

Dear All,I am preparing for GMAT and planning to give it in the month of Sept 09. Being new, I do not have any course material for preparation. Does OG11 Sufficient? Fot Mathematics doesn't it need to have something which would teach basics? Please also inform me which Institute in Bangalore is best in GMAT.ThanksAlpana