Hello

See, every course you mentioned is best in their field to study.

BAMS:

The BAMS course- Bachelor of Ayurvedic Medicine and Surgery is a 5.5 years for undergraduate students eligibility you must have completed their 10+2 qualification in subjects like Physics, chemistry, Biology and English core subjects.

Enterance exams- NEET,OJEE,KEAM,BVP CETetc.

MHA:

MHA- Master of Health Administration is a 2 years course in a proffesional master's level degree accredited to students to completed their course of study in health administration which includes the management course of hospital and other health organizations

Eligibility criteria- candidate must have completed their in any field of Science, arts or Commerce. It can be merit based or basis of marks obtained in Enterance exam.

MPH:

MPH course- Master of Public health is also a post graduate course of 2 years that deals with the main areas of health sciences. The master of public health course aim to make public health education and research efforts relevant to India in terms of content and context. The minimum percentage required is 50%

Subjects required- MBBS, BDS or any other equivalent degree.

MD/MS:

The MD Medicine is a post graduate course of 3 year, MD is the future prospects of the MBBS candidates, who have completed their 5 years and 6 month training in Medical subjects. Every year one out of 3 patients is reffered to a specialist. These specialists are the MBBS doctors who have earned the MD Medicine degree.

MS:

MS- Matster of science course is offered in 2 major domains: Engeering and Management, The duration of which can be between 1.5-3 years in a full time mode. The eligibility criteria is minimum 50-60% marks in the UG level, along with a valid GATE score to get admission in the MS Course.

I hope this answer is helpful for you!

All the best for your bright future ahead!