Hey. 

Greetings, hope you're doing well. Eligibility criteria for NEET 2020 is as follows: 

The candidate must have passed 10+2 with physics, chemistry, biology and english as core subjects in both 11th and 12th from recognised board. 

The minimum age for Neet is 17 years as on December, 2020

Also, minimum aggregate marks in PCB subject, for general category is 50%, for Obc/SC/ST is 40%.

Hope this helps. 

Dear Aspirant,

Your overall marks are considered for the overall aggregate calculation. There is no separation of theory marks from your practical marks. The marks you have got from overall marks, combined both in theory and practicals will be calculated.

Comment down your board for more details.

Generally, students with 50% or more marks in PCB are allowed for the exam.

Hope this helps.

Thank You.

Dear student, indeed the practical marks are also included while calculating PCB aggregate in NEET UG. As you have scored 266 marks out of 450 in class 12th, you are very well within the range of appearing in NEET. You are just to score over 50% marks aggregate in PCB in class 12.