India Exam

Hi,
Consortium of Medical Engineering and Dental Colleges of Karnataka (COMED K) conducts a state-level examination called COMEDK UGET (Undergraduate Entrance Test) to offer admissions to interested candidates in engineering and medical degree courses offered by colleges/institutes that are affiliated to COMEDK.
For more details, kindly refer the link below:
https://www.shiksha.com/comedk-exampage
I hope this information helps. Please feel free to revert.
Wish you luck.

Hi Anjali, MCAT is the primary exam you need to take to obtain entry into Harvard Medical School or any medical school in USA. You must also take the TOEFL. Please go through the page below, will help you understand the process better. Harvard is one of the toughest to get into so you must have met all the requirements it states.
http://hms.harvard.edu/departments/medical-education
All the best.

GMAT exams are flexible and you can take it whenever you desire. CAT on the other hand is once a year exam which is usually organized in November. Course curriculum is almost same for both and includes quantitative abilities, verbal and logical reasoning. However exam pattern is different, GMAT is adaptive where as CAT is not.