On 1st July 1942 Assam Bengal Railway and Eastern Railway were amalgamated to form Bengal Assam Railway system which was divided according to the political boundaries and Sealdah Division became a part of Eastern Railway on 14.4.1952 after reorganization.

The Division comprises six districts of the State, this Division covers the geographical Land mass between river Hooghly on the West, Bangladesh on the North and the Eastern side and the Sunderbans on the South.

Dum Dum Jn. Also plays an important terminal where Metro and Circular Railway join with Sealdah Mail Lines.

The division also serves Bangladesh Railway Traffic via Gede and Petra pole Station.

All Civil Engineering assets of the division like railway Track, Stations, Service Building, Staff Colonies & Bridges are being maintained by Engineering department. There are 3 Sr. Divisional Engineers, 3 nos. Divisional Engineers & 9 nos. Assistant Engineers working under Control of Sr. Divisional Engineer (Co-ordination).

Besides these officers, there are 65 Sr. Section/ Section/ Jr. Engineers (Bridge) in non gazetted category are maintaining Railway Tracks, Works & Bridges respectively.

ENGINEERING DETAILS
ORGANIZATION CHART
ROUTE KM	..	718.74
	BG	691.35
	NG	27.39
TRACK KM	..	1691.96
	BG	1662.46
	NG	29.5
E.T.K.M.	..	2716.16
I.T.K.M.	Works	2278.485
	Bridge	452.52
NO. OF STATIONS :	TOTAL STN	204
BLOCK STATIONS	..	106
FLAG STATIONS	..	45
HALT STATIONS	..	53
BLOCK CABIN	..	5
NO. OF LEVEL X-ING	TOTAL	537 NOS
SPL CLASS	..	2
CLASS 'A'	..	32
CLASS 'B'	..	119
CLASS 'C' (MANNED)	..	250
CLASS 'C' (UNMANNED)	..	93
CLASS 'D'	..	41
NO. OF BRIDGES:	TOTAL	744 NOS
IMPORTANT		1 NO
MAJOR		85 NOS
MINOR	..	658 NOS
NO. OF QUARTERS:	TOTAL	16,755 UNITS
TYPE-I	..	10,855 UNITS
TYPE-II	..	4,658 UNITS
TYPE-III	..	584 UNITS
TYPE-IV	..	440 UNITS
TYPE-V/Bunglow	..	135 UNITS
Out House	..	83 UNITS
POINT & X-INGS
Pass Line	..	779 SETS
NonPass Line	..	803 SETS
CURVES		519 NOS
YARD DIAGRAM		DRAWINGS