Hi Dhwanil7,
Based on the results of your practice GMAT, you may need around 6+ months of study time to reach your score goal. Additionally, you may consider studying 1 to 2 hours each week day and 4 to 6 hours each weekend day. With that said, you also have to select GMAT prep materials that work well for you.
When selecting those materials, keep in mind that the GMAT is such a challenging exam because there are relatively few questions asked in a given exam, yet those questions come from a huge topic pool. Thus, the best way to get a great GMAT score is to have a thorough understanding of all the topics that may be tested on the exam. To develop such mastery, you want to strive for linear and targeted learning and follow that with focused practice.
When studying verbal, focus on learning one section at a time: reading comprehension, sentence correction, or critical reasoning. For example, when learning about critical reasoning, you want to be able to learn about all aspects of critical reasoning: strengthen and weaken the conclusion, resolve the paradox, find the conclusion, must be true, etc. Follow up your learning with focused critical reasoning practice, so you can determine your specific weaknesses within that topic. Do the same with sentence correction and reading comprehension.
Follow a similar routine for quant. For example, if you are learning about Number Properties, you should learn everything possible about that topic: LCM, GCF, units digit patterns, divisibility, remainders, etc. After that, be sure that you practice with a lot of questions (50 or more) just on Number Properties.
To allow for such focused learning and practice, you may consider using a self-study course rather than a book. In comparison to GMAT prep books, self-study courses typically provide detailed study plans and have granular analytics, so you can easily track your progress as you move through the course. By being able to track your progress, you will remain more engaged, and you’ll be able to forecast when you are ready to take your real GMAT. If you would like to learn more about what online resources are available, check out the verified course reviews on Beat The GMAT. After doing some research you should be able to find a course that is a good fit for you.
Lastly, here is an article that provides
some actionable steps that you can follow to help achieve a 700+ on your GMAT.