Well Congratulations first on your success.

You have a good rank and based on last years NEET Counselling data, a rank of 2935 was allotted Madras Medical College, Chennai with MD Paediatrics. Other paediatric seats were taken mostly in North Indian colleges like Kolkata, Orissa, Patna etc.

You may use the College predictor which is pretty well is predicting the colleges you may be offfered at your rank. The link is below

https://medicine.careers360.com/neet-pg-college-predictor