My 12 Marks in CBSE is : Math 66/100,Phy :74/100,Chem : 90/100,Eng :73/100,Computer : 94/100,Phy Edu : 82/100
Physics, Chemistry, and Maths are must and English is also a must option to sit for JEE exam. So you should clearly choose Computer in place of physical education because you have scored better on the computer.
I hope I was able to clear your doubt
Physics chemistry english are compulsory subjects.
You should choose computer as the fifth subject .
Because you scored higher in computer than edu
So adding all that 5 subjects and taking percent
You are getting 79.4 percent.
As you got above 75 percent you are eligible for admission in NITs
Hope you are doing well. The five subject you to choose are like physics, chemistry, maths and English are compulsory only if you see directly or indirectly so you only have option for one subject and in that you will choose the subject with highest marks . So in final you have to choose physics, chemistry, maths, English, computer.
Hope this helps.
If any queries feel free to ask
All the best!!