For neet :
Candidates must secure minimum 50% marks (GEN), 40% marks (SC/ST/OBC), 45% marks (GEN PH) & 40% marks (SC/ST/OBC-PH) taken together in PCB subjects.

For aiims :
60% aggregate in class 12th in english biology chemistry physics
For sc and st category students , it is 50%
All the very best
Hope it helps

For AIIMS-UG entrance, the minimum scores required to apply for the examination is 60% aggregate in English, Physics, Chemistry and Biology for GENERAL CATEGORY candidates. It is 50% aggregate for SC/ST/OPH CATEGORY candidates in class 12.

For NEET-UG entrance examination scores required to apply for the examination is 50% aggregate in English, Physics, Chemistry and Biology for GENERAL CATEGORY candidates. It is 45% for GENERAL-PH and for SC/ST/OBC, the requirement is 40% marks in the above mentioned subjects.

To appear for neet you dont need 12th marks but once you qualify neet your 12th marks come into act.Atleast 60% of marks in phy,chem,bio,and english are required for a general candidate.If you are preparing for neet never bother for these marks.You will have them easily.Just stay focussed.

For neet u need 50% marks in physics ,chemistry and biology aggregate for General and obc and 40% for sc and st .
For aiims u need 60% marks in physics ,chemistry and physics aggregate for general and obc and 50% for sc and st .

As there is nothing announced for 2018 session but as per previous year information to be eligible for NEET the percentage should be 50% aggregate in PCB  for general category and for AIIMS it should be 60% in PCBE.

To check about the complete eligibility, you can go through the below links -

NEET Eligibility

AIIMS Eligibility

 

Good Luck!!!

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