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GMAT in detail: Sectional breakdown...

VERBAL SECTION: In this section there will be 41 questions.

Question type 1: Sentence Correction

Question type 2: Critical Reasoning

Question type 3: Reading Comprehension

MATH section: 

Question type 1: Problem Solving

Question Type 2: Data Sufficiency.

AWA Section:

Question type 1: Analysis of an argument

Question type 2: Analysis of an Issue

Things you can do besides studing for GMAT:

1. join community service 

2. learn a foriegn language

3. learn some instrument

and so on ... this will improve your profile ....

Most Indians face problem with Verbal Section, so I will start with verbal section. 

In verbal section : Sentence Correction   :)