Going by previous All India cut offs and your rank you may have decent chances in the following Medical Colleges:

Mandya Institute of Medical Sciences: Pathology

BMCRI: Pharmacology

Sri Devraj Urs: Anaesthesiology

Hasan Institute of Medical Sciences: Anatomy

Vijayanagara Institute of Health Sciences: Bio Chemistry

Obstetrics and Gynaecology are a tad tough in Karnataka with this rank. Having said that, 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