DISTRICT / BRANCH CODES    
WBL2390   WEST MEDINIPUR
WBL2391     EAST MEDINIPUR
WBL2400    HOWRAH
1 WBL2400 01 Howrah
2  WBL2400 02 Howrah South
WBL2410   NORTH 24 PARAGNA
WBL2420   SOUTH 24 PARAGNA
WBL2430   KOLKATA
3  WBL2430 01 Alipore
4  WBL2430 02 Ballygunj
5  WBL2430 04 Kolkata
6  WBL2430 05 Kolkata North-East
7  WBL2430 06 Salt Lake
8  WBL2430 07 Kolkata South
9  WBL2430 08 Kankurgachi
10 WBL2430 09 Damdam
 WBL2440            HOOGHLY
11  WBL2440 01   Hooghly
12  WBL2440 02  Khanyan
WBL2450     NADIA
 WBL2460    BARDHAMAN
13   WBL2460 01 Shakti Durgapur
14  WBL2460 02 Raniganj
15   BL2460 03 Pranavananda
WBL2470    BANKURA
16  WBL2470 01 Aloke Tirath
WBL2480   PURULIA
WBL2490   BIRBHUM
WBL2500   MALDA
WBL2510   MURSHIDABAD
WBL2520   DAKSHIM DINAJPUR
 WBL2530  UTTAR DINAJPUR
WBL2540   DARJEELING
WBL2550   JALPAIGURI
WBL2560  COOCHBEHAR

ANDAMAN & NICOBAR 
WBL2610   NORTH AND  MIDDLE ANDAMAN
WBL2611    SOUTH ANDAMAN
WBL2620  NICOBAR