Science

Hello,
Instead of going for coaching classes, you can prepare for JAM Exam by your own. You should solve as many previous years IIT JAM Question Papers as possible. This will give you an idea about the pattern and difficulty level of the questions. Also take online mock tests to analyze your preparation level. This will also increase your speed and accuracy while solving questions. Focus mainly on the most important topics from now. Learn all the important formulas. Practice as many questions as possible. Makes notes of all the important stuff. This will help you in your last minute preparation. Improve your weaker areas. Study more for the topics in which you are weak. Study at least 6-7 hours daily and give your last 30-45 minds to the revision daily.
Best of Luck!

You can go for MS after BAMS but for post graduation in Obs Gyna MD in gynecology and Obstetrics you need to have an MBBS degree. After completion of B.A. MS if the candidate wants to pursue MD in Gynecology then the candidate have to complete MBBS first then only he/she will be eligible to pursue the post graduation degree course to become MD in gynecology which will again take around 2 years to complete this degree course. In order to pursue the MD course the candidate needs to appear for NEET PG examination and have to pass it then the candidates will be allotted to their colleges/institutions based on the marks obtain by them and to pursue MBBS course the candidates must have scored a minimum of 60% in his 10+2 with Physics, Chemistry and Biology as the main subjects.