Dear Neeraj, with a limited no.of seats against high competition any seat that you can get is good. Neverthless, the range of marks for ST Category in 2018 under State Quota range from 385 to 492. If you think higher the cut off, reputed the college, then Swami Mann Singh college has the highest cut offs. In 2018 under State Quota 492 marks secured a seat in this college under ST Category. 385 marks secured a seat in Rajamata Vijaya Raje Scindia Medical College. That was the cut off for ST Category. Having said that, cut offs change every year and are dependant on various factors like no.of seats availble, no.of candidates appearing for the exam, top NEET score and difficulty of the exam. You can check the cut offs of various colleges at:

https://medicine.careers360.com/articles/neet-cutoff-rajasthan/amp