Paramedical

Eligibility criteria: In case of most of the institutes out there, minimum educational qualification required is- 10+2 passed with minimum 45% marks in Physics, Chemistry and Biology subjects. Note: Some institutes are also known to accept 10+2 passed students hailing from any stream (depending upon the course).
Admission process: Depends on the institute. Most institutes follow merit based admission process, where marks scored in board exam and/or relevant entrance test are taken into consideration. Some institutes follow direct admission process. High profile institutes are known to have their own screening test for selecting candidates.
Regards.

Please refer to the link provided below for a detailed list containing reputed government & private universities which offer B.Sc in anesthesia and OT techniques from India. You should be able to navigate to a college of your choice and check for admission details via the link provided below. I have also provided a link for top B.Sc.entrance exam, where you can check for the relevant entrance exam for your course. Regards.
https://www.shiksha.com/medicine-health-sciences/paramedical/colleges/colleges-india?uaf[]=base_course&uaf[]=specialization&ts=26698713&rf=filters&bc[]=26&sp[]=384
https://www.shiksha.com/science/articles/top-bsc-msc-entrance-exams-in-india-blogId-13484.

There are plenty of good jobs & higher study opportunities available after getting the degree in dentistry as a doctor. It is the professional field with 100% job placement.
A BDS graduate may go for the PG degree programmes leading to the Domain MS (Master of Dental Surgery). MS is the advanced degree in dentistry field and allows the candidates to specialize in any of its discipline. Interested candidates can also go for research programme by pursuing Doctor of Philosophy.
Teaching career is also open for BDS graduates. Those interested in teaching can acquire teaching jobs in any of the top Dental Colleges. They are eligible to hold positions as professors or even HOD and even get promoted to Dean. One can also open his/her own dental clinic or work as dentist in government and private hospitals.
This profession includes the imaging, tissue graft, implants, laser surgery and trauma. After completing this course you will be hired by the medical college, hospitals, nursing home, health corporations, health ministry, and back office medical consultancy.
Some of the best colleges in India from where you can pursue clinical research are as follows:
1) Institute of Clinical Research India
2) Apheta Institute of Clinical Research
3) Hamdard Institute of Medical Sciences and Research
4) Indian Biosciences and Research Institute
5) Sharda University - School of Medical Sciences & Research
Admission to these universities may require appearing for entrance exams conducted by the institute. Different institutes have different admission criteria. Request you to check for the same, or mention the college for which you need admission details so that I can populate information for you. Regards.