Hey Rashed,
Thank you for the acknowledgement!
As for you problem, you know as well that there is no 1 step solution.
The reason you are getting low scores in verbal can be multi-faceted. For example, maybe your vocabulary is not strong enough or maybe your patience during reading a long RC runs out quickly leading to faulty comprehension and eventually wrong answer. So my advice to you is that you need a strong dose of self-introspection. At least', that's what I would have done if I were facing the same problem as you are facing right now. Let's see the type of question the verbal section throws at you:
- Sentence Equivalence
- Text Completion
- Reading Comprehension
- Critical Reasoning or paragraph argument questions
For the first two types of GRE verbal questions
you just need to have a strong vocabulary. Without that, it's impossible to ace those sections. The challenge in this new format of GRE is that even possessing a strong vocabulary might not be enough to ace these questions since this new GRE doesn't only test your vocabulary but also the way you understand the subtle difference in applications of the words. Just memorising the meaning of 1000 most frequent GRE words won't get you close. It's how you learn them...through association and application in your life. So if you are not doing this now, I implore you to start doing it ASAP.
Now let's see what we have in store for the last two types of GRE question- the RCs and the CRs. This section tests your ability of comprehending passages with complex mutually conflicting arguments and making a big picture out of it. Having a strong vocabulary is not needed here. but it helps a lot I have to say. Sometimes not knowing the meaning of a certain word can change your entire viewpoint about the passage. But the most important quality you have to have to ace this section is your sharp analytical skills. We all have that to varying degrees. But without using them much, those skills get blunt. Only way to sharpen them? Through practice
Recommendations
At the end of the day, it's only you who understands what it is that you lack which is responsible for you getting below average verbal scores. Once you are able to delineate the problems you are facing, I suggest you try to solve them one at a time. In this part I am gonna give you some recommendations for building your vocabulary:
For building your analytical and RC skills go to this
forum. These are GMAT RC's which I find at least tougher than GRE RC's and if you practise them you are only gonna find GRE questions to be a lot easier.
I hope this helps you.