hello aspirant,

YES, you will be eligible to appear in NEET exam if you reappear in Class 12th as a Private candidate. furthermore, there are no limit in the attempts of the NEET Exam, meaning the candidates can give as many attempts in the NEET exam as he/she wants. So, even if you have cleared your previous NEET exam, if you want, you can again reappear for NEET .

Further, to know more about the NEET Exam in more detail, you can follow the below mentioned link to know more : https://medicine.careers360.com/exams/neet

I hope that this will help.