Hi there,

Some of best colleges for DNB medicine are following:

CMC Vellore

St. Johns medical College, Bangalore

MS Ramaiah medical College

KPC Medical College and hospital

HIMSR new delhi

IIMSR Lucknow

VIMS Bangalore

DYPMC Pune

KMC magalore

KMC Manipal

DMCH Ludhiana

Stephen's, Delhi

Hinduja,Mumbai

Sir Gangaram,Delhi

Holy family hospital, Mumbai

Deenanath mangeshkar,Pune

Hope it helps you

Good luck!