The Graduate Management Admission Test (GMAT) is a computer-adaptive test which assesses a person’s analytical, writing, quantitative, verbal and reading skills in standard written English. If graduate students want to pursue managaement course in US they need to give GMAT

 The average scores required for universities abroad varies; top universities require at least 710, while middle universities accept 600.
For Executive MBA, GMAC has recently introduced a new Mini GMAT called Executive Assessment exam. This exam is specially designed for EMBA applicants and is of considerably shorter duration. It is meant to test analytical and logical thinking of the applicant, which is more suited for the Executive MBA course.

Latest Update :-
The Graduate Management Admission Council has shortened the GMAT exam by 30 minutes which will be effective from 16 April, 2018. The new exam will be of 3 hours and 30 minutes including test instructions and breaks. The Verbal Reasoning and Quantitative sections are shortened by 13 and 10 minutes respectively. The Integrated Reasoning and Analytical Writing Assessment along with the Score Preview and the optional break time will remain same. These changes will not have any impact scoring in the shortened Verbal Reasoning and Quantitative sections as only the unscored items have been removed by the GMAC.   
The application fee for GMAT 2018 is $250, which would roughly translate to Rs 15,000-16,000 approximately. Also, if the applicants want to change the center or reschedule the test then they will be charged $50 extra.

GMAT Pattern
The GMAT exam pattern consists of mainly four sections. These are – Writing, Reasoning, Verbal and Quantitative skills. The duration of GMAT exam is 3 hour and 30 minutes.
GMAT 2018 Paper Pattern
Section No. of questions Question Type Duration
Analytical Writing Assessment
1 Topic Analysis of an Argument 30 minutes
Integrated Reasoning
12 questions Multi-Source Reasoning, Graphics Interpretation, Two-Part Analysis, Table Analysis 30 minutes
31 questions Data Sufficiency, Problem Solving 62 minutes
36 questions Reading Comprehension, Critical Reasoning, Sentence Correction 65 minutes
Total Exam Duration 3 hours 30 minutes
GMAT Score is valid for 5 years