Dear Surya, you haven't mentioned your Category but Tamilnadu is one of the States where the cut offs are higher. In 2018, 593 marks secured a Medical Seat in Rajaih Mutiah Medical College under OC category. For BC, 588 got a Medical seat in the same college. For SC, it was 543 and for ST it was 529. All these marks got Medical seats in Rajaih Mutiah Medical college under various categories. Now, cut off changes every year and is dependant on various factors like no.of seats available, no.of candidates appearing for the exam, difficulty of the exam, candidates category and top NEET score. Anyrhing less than 600 will be a tough fight to get a Medical seat in State Quota.