My quation is that l passed 12th with pcb but biology thoery only 12marks and prectical 27marks total 39 .I belong to obc eli for neet

Hey!

For NEET, the eligibility criteria (according to the authorities) is as follows:

Minimum percentage of marks in class 12th should be 50 percent for unreserved, 40% for OBC, SC and ST, and 45% for PWD. Remember that these are not marks in each subject but these are aggregate marks in physics, chemistry, and biology (PCB subjects).

Even if you have scores less in biology overall, you are eligible for NEET if your aggregate PCB percentage is above 40%.

Please check out the following link for more details:
https://medicine.careers360.com/articles/neet-eligibility-criteria

Hope it helps!