Going by previous All India cut offs and your rank you may try for a seat in Sree Balaji Meidcal College and Hospital for a seat in MS in Obstetrics and Gynaecology. And for MD in Paediatrics, you can get a seat in Aarupadai Veedu Medical College. Now this is 2019 data and cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, difficulty of the exam, and no.of seats available for each specialisation. Please try our College predictor to check the possibility of other specialisations with you rank across India:  https://medicine.careers360.com/neet-pg-all-india-college-predictor