BDS

Hello,
Yes, you could do MS from abroad, but you need to keep in consideration about its prequisities.
Good luck.

Hello,
You are now open to any of the postgraduate Diploma /degree courses, other than that you could do UPSC.
Good luck.

Hello,
In terms of better money, better is UAE or Europe.
Good luck.

Hello,
You should be with an option, be it Diploma, further PG degree in your expertise or other sectors, or you could join any hospital / could have your own private chamber, or you could apply for UPSC exams, to be in top posts.
Good luck.

http://www.amity.edu/course-details.aspx?fd=FzNymoX3dH0=&cfn=3AbgzurpP50=&CD=3AbgzurpP50= Kindly refer to this, minimum academic qualifications you need is 50%, good luck.

Hello, it is around 250-500, based on your category, good luck.

Hello, best is MAIDS followed by GGSPU, ACDS, UCMS, while AIIMS does not offer for the same, good luck.

Hello, you may join international congress of oral implantologists, kindly refer to https://www.icoi.org/ for more details, good luck.

Hi, to get admission abroad you have to clear the following exam.
IELTS or TOEFL. After clearing these exams, you can take admission in college.

If you wish to have a career in the non-clinical field and move abroad, MPH is a good option. Also, in case, you decide to go to the USA for your MPH and later want to practice dentistry, it'll be a great step for your admission in a college for DDS.