anyone score 25 in physics ,21 in chemistry,40 in biology in theory marks and 29 in physics, 28 in chemistry ,29 in biology in practical marks . total exam marks is 100( 70 in theory+30 in practical).can he eligible for neet exam.he is an obc category.

To be eligible for neet , one needs to pass 12th with English and PCB (in both the theory and practical) with at least 50 % in aggregate of PCB ( in theory +practical) in 12th examination if belongs to general category, or else at least 45% in aggregate marks in PCB if belongs to pwd category or at least 40% in aggregate of PCB if belongs to Obc/ Sc /st.
So , if one fulfils this criteria then he is eligible for neet. Now it seems you have passed all your practical and theoretical examination. And your total PCB Score out of 300 is 172. Therefore the PCB percentage will be 57.3%, which makes you eligible for the exam, if you have passed all the theoretical and practical exams.