• Candidate must have 10+2 competition  certificate
• candidates appearing for class 12 are also eligible
• Minimum age is 17 years
• There is no upper age limit
• One should possess 50%  if UR,40% for OBC/SC/ST and 45% if PWD
• There is no attempt limitations

Dear Saheb, few States like Punjab and Delhi offer eligibility to Candidates who completed 10+2 in their State to participate in their State Counselling. Now States like West Bengal and Tamilnadu do not go by this rule. Jharkhand is one amongst them. Only natives and permanent residents of Jharkhand are eligible for appearing in Jharkhand State NEET Counselling. So even if you have completed your 10+2 from Jharkhand, you still cannot participate in Jharkhand State Counselling. You will be only eligible for Bihar State Counselling.