Hi !

With your score , it is very difficult to get a seat in Chengalpattu government medical college even under SC category because this college had  high cutoffs even for reserved category. According to previous year's data , the cutoff score of this college was 423 with a closing rank of 60922. These cutoff marks are much more than your marks , so it would be very difficult for you to get into this college. Rest , it depends on each year's cutoff as it changes every year , depending on no. of candidates , exam level , no. of seats etc..

All the best !

Check out the following website for more information:

https://medicine.careers360.com/articles/neet-cutoff-tamil-nadu