Hello Prashant,

Based off of your previous test results, look and note down a few things:

• See which question type you are taking the longest on && getting wrong. This is a MAJOR WEAKNESS.
• See which question type you are taking the shortest on && still getting wrong. This is another WEAKNESS.
• See which question type you are taking long on && getting right. This is a WEAKNESS.
• See which question type you are doing very quickly && getting right. This is a STRENGTH.

Firstly, go through the tests you've taken. Analyze what you've gotten wrong, and why. Learn from these mistakes!

Secondly, review the MGMAT books for the topics/sections which are your MAJOR WEAKNESSES. Do all the problem sets. Practice more problems like these using Archer.
Do the same for the WEAKNESS types.

Thirdly, re-review your tests and re-do any problems you missed. You should be able to get them completed faster, regardless of right or wrong.

In addition, completing a ton of questions can help, but you'll have to make do with the time you have. The best practice is from the Official Guide. At the end of the MGMAT books, it has a section detailing the OG problems under the categories, so you can practice your weaknesses using that as a guide. For scoring above a 700, you will need to be comfortable with the advanced topics in the Quant section, and you need to be spot on with your Verbal, because it has the capability of really lowering your score.

Lastly, aside from participating on the various forums and practicing the most difficult material you can lay your hands on, you should take a few more practice exams and you should review them!

Hope this heps!
--Rishi