Hello, here I am providing you the details of the GMAT exam as under:

Test schedule:
Test makers should schedule their GMAT for a date that is “at least 21 days prior to your application deadline.” You can find a testing center near you to test availability or register on this page. Weekend dates tend to fill up quickly as application deadlines approach.

The GMAT exam is available around the world throughout the year.
Before you decide to register for the GMAT exam, search for a convenient testing location that has available seats.

Paper pattern:
GMAT Test Section Question Types Timing
Analytical Writing Assessment Analysis of Argument 30 Minutes
Integrated Reasoning Multi-Source Reasoning 30 Minutes
Graphics Interpretation
Two-Part Analysis
Table Analysis
Quantitative Data Sufficiency 75 Minutes
Problem Solving
Verbal Reading Comprehension 75 Minutes
Critical Reasoning
Sentence Correction
Total Exam Time 3hrs, 30 minutes

GMAT exam centres in India:
Delhi
Mumbai
Chennai
Kolkata
Hyderabad
Bangalore
Pune
Chandigarh
Ahmedabad
Visakhapatnam
Ranchi
Kochi
Indore
Nagpur
Coimbatore
Lucknow
Jaipur