Dear Deepak, OBC Category in Haryana is subdivided into BC-A and B Categories. In 2018, under State Quota, 494 marks secured a seat in Shaheed Hasan Medical College under BC-A Category and 514 marks secured a seat in the same college under BC-B Category. Now this is 2018 data and we do not have 2019 data yet. Having said, cut offs change every year and are dependant on various factors such as no.of candidates appearing for the exam, no.of candidates qualified, top NEET score and difficulty of the exam. So if your target is a GMC in Haryana, your score should be nothing less than 600.