Hi there!!!

As you are a private candidate ,you should write your last attended institute name while filling the form of Jee Mains or other engineering entrance exams , For example : If you are now in class 12th(as a private candidate) and you attended some Xyz school for your 10th , than you should write name of that Xyz school while filling your form...
Hope you got your answer,do upvote the answer if it helped you...
Best of Luck for your Future Endeavours!!!

Regards,
Rajdeep Sinha

U should write your school name there

Hello Nisha,
You could write your private college name itself while filling up the form. That won't cause you any problem

you have to write the college which you represented as you college in final exams