Hi,

Ranking is carried out on the basis of various factors such as facilities,academic history,infrastructure etc by public as well as private agencies. The top institutes of Rajasthan includes

Sardar Patel Medical College, Bikaner

AIIMS, Jodhpur

Rabindranath Tagore Medical College,Udaipur

GMC, Bharatpur and so on.

You can check the ranking of institutes in  Rajasthan from following article

https://medicine.careers360.com/colleges/ranking/top-government-medical-colleges-in-rajasthan

Or can check the all India  ranking of institutes by NIRF in the following link

https://www.nirfindia.org/2020/MedicalRanking.html

All the best.