371J is for Hyderabad-Karnataka border Candidates and this reservation is confined to State level. But admissions to AIIMS and JIPMER will be conducted at All India Level. So your Category that you belong to General/OBC/SC/ST only is considered and not HK Quota. So for a seat in AIIMS, you will need atleast 650. That might be the cut off. But again cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. To help you with your NEET preparation, we have NEET Knockout packages that you can check at: https://learn.careers360.com/knockout-neet-may/. To help you during admission and counselling, we have https://www.careers360.com/mbbs-companion.