Hello,
It is quite not correct to answer your question. Solving aakash modules will help you get a better score than those who didn't go through such practice. But it is quite not possible to say how much you can score. It depends on many factors other than just hard work. If you want a better score then solve as many problems as you can. Familiarize yourself to exam environment, and try to increase the no.of questions you can solve in 3 hrs.
Good Luck!

Hello Akshhi

You haven't mentioned above which exam you are talking about.

Moreover it totally depends upon your capacity learning power understanding etc. 

Though many students are doing well through only Akash modules.

One more important thing I would like to suggest you from my side is to join test series online or offline.

Ok good luck