Hi Amar1980,
You've given yourself plenty of time to study for the GMAT - which is good. A goal score of 730 is above the 90th percentile, which means that over 90% of Test Takers will never score that high regardless of how many times they take the GMAT. This is meant to say that you would likely benefit from investing in a GMAT Course of some type (either Guided Self-Study or instructor-led), instead of trying to 'piecemeal' a study plan together by studying individual subjects on your own.
Since it sounds like you're just beginning your studies, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can download 2 for free from
www.mba.com (and they come with some additional practice materials). If you want to do a little studying first, so that you can familiarize yourself with the basic content and question types, then that's okay - but you shouldn't wait too long to take that initial CAT. That score will give us a good sense of your natural strengths and weaknesses and will help provide a basis for comparison as you continue to study. A FULL CAT takes about 4 hours to complete, so make sure that you've set aside enough time to take it in one sitting. Once you have those scores, you should report back here and we can come up with a study plan.
GMAT assassins aren't born, they're made,
Rich