for how many subject you appere as private candidate?

Dear Vikas, you are eligible to attempt NEET even if you passed as a private candidate. The criteria is that you should have scored atleast 50% in your +2 with subjects like Physics, Chemistry, Biology/Biotechnology if you come under general category. For SC/ST it is 40%. If you fulfill this criteria then your qualification code is 02. 

And what should be in class 12