MBBS

You need at least more than 550.

Candidates should have qualified 12th board or equivalent examination of 10+2 education system recognised by AIIMS Delhi.
You should have also studied Physics, Chemistry, Biology and English as mandatory subjects in their 10+2 level.
In addition to the above conditions, candidates belonging to General and OBC categories should have secured a minimum of 60% marks in the aggregate of aforesaid subjects and those belonging to SC, ST and OPH categories should have obtained at least 50%.

A candidate with PG in physiotherapy is eligible to open his personal physiotherapy center and also can work as a personal physio therapist who serves the patients personally at their homes.

Hello,
If we think about biology, the first career option comes in our mind is MBBS. But, if you are not interested in this field then there are too many other career options also available.
Check complete list here: http://articles.abilogic.com/196120/topmost-career-options-12th-science.html
I hope it will help you.

Admission to BMM degree is open to students, who have humanities, science and commerce subjects in class 12th.

Yes, the entrance for AIIMS is on 28th May and for JIPMER is on 4th June 2017.

It should be above 500 marks for All India Quota.

Yes, you can get a seat. Category qualifying marks out of total 720 marks:
General-50% equal to 360 marks
SC/ST/OBC-40% equal to 288 marks