Hi Aspirant,
There are 14 government medical colleges in West Bengal and three private medical colleges. The rankings of these medical colleges depends on their location, academics, year of inception.

The top 8 medical colleges are most sought after medical colleges (one after the other), whereas preference for the remaining 6 medical colleges depends on the region from which a candidate belongs or popularity of the college.

The colleges are(and rankings):-

Medical college Kolkata
RG KAR medical college
NRS medical college
IPGMER & SSKM HOSPITAL
CNMC Kolkata
Burdwan medical college
Bankura Sammilani medical college
NBMC, Darjeeling
Kalyani medical college
School of medicine & Sagore datta hospital, Kamarhati
Midnapore medical college
Murshidabad medical college
Malda medical college
ESI Joka
KPC medical collegeJadavpur

Hope this helps.