|Express train and passenger train terminal station|
Kolkata Suburban Railway Station
Sealdah Railway Station
|Location||Sealdah, Kolkata, West Bengal|
|Elevation||9 metres (30 ft)|
|Owned by||Indian Railways|
|Operated by||Eastern Railway|
|Structure type||Standard (on ground station)|
|Zone(s)||Eastern Railway zone|
|Previous names||Eastern Bengal Railway, Assam Bengal Railway|
|Passengers||over 1.8 million (per day)|
Sealdah railway station is one of the major railway termini serving Kolkata and Howrah, India. The others being Howrah, Shalimar, Kolkata and Santragachi. Sealdah is one of the busiest railway stations in India with a daily passenger footfall of over 1.8 million. It also acts as an important suburban rail terminal. After completion, Kolkata Metro Line 2 will pass through Sealdah.
Sealdah railway station was started in 1869. Before 1978, there was a tram terminus at Sealdah station. Trams departed from here towards Rajabazar, Howrah Station, Calcutta High Court, Dalhousie Square, Park Circus and Dharmatala. The first horse tram service of Kolkata was also started from Sealdah to Armenian Ghat, following the currently route 14 & 16 between Lebutala & Dalhousie Square. The Sealdah–Lebutala & Dalhousie Square–Armenian Ghat (later extended to High Court) stretch is now closed. That terminus was demolished in 1978 also with the Sealdah–Lebutala tram track stretched through Boubazar Street for construction of the Sealdah flyover. Now tram services between Rajabazar–Esplanade, Park Circus–Burrabazar and other services pass through Sealdah. Currently, a car parking exists in place of the old tram terminus.
The north and south sections have separate set of emerging tracks. The north and south section is connected by two links, one is Dumdum–Majherhat link (popularly circular rail) and other is Bidhannagar Road–Park Circus link (extension of circular rail). These two links were constructed to quickly travel between the two sections avoiding Sealdah.
For the financial department, there are DRM's, Sr.DFM's and ADFM's to look over. Sealdah North acts as the suburban train terminal for main division . The main division of Sealdah north operates trains plying between Kolkata and Hasnabad, Bandel, Gede, Ranaghat, Shantipur, Krishnanagar, Berhampore, Lalgola, Dankuni, Katwa, Bardhaman, Kanchrapara, Barrackpore, Kalyani, Kalyani Simanta and others. A narrow-gauge line earlier used to connect Shantipur and Krishnanagar but now it has been replaced with broad gauge. This narrow-gauge line further continued to Nabadwip Ghat and was served by DMU trains formerly (all other lines run EMU trains). Now the suburban train service is also extended from Krishnanagar to Lalgola, which part was previously served by electric loco-hauled trains only. Sealdah-Dankuni (via Vivekananda Setu) line connects Eastern Railway's Howrah-Bardhaman chord line at Bally Halt (on a viaduct atop Bally station) and Dankuni. Naihati-Bandel (via Sampreeti Bridge) line connects Eastern Railway's Howrah-Bardhaman main line at Bandel Jn.
Now the poorly-patronized branch line between Dum Dum Cantonment railway station and Biman Bandar railway station (Dum Dum Airport) is closed and replaced by Line 4 (under construction) of the Kolkata Metro.
Sealdah Main is the mail/express terminal for long distance trains to northern, north-western, north-eastern & eastern India, through Dankuni line and Bandel line. Krishnanagar line is also serving long distance intrastate trains.
There is also an EMU carshed at Sealdah (Narkeldanga). Other EMU carsheds are at Barasat and Sonarpur. A diesel shunter loco shed is also situated at adjacent Beliaghata. A rail coach factory is set to come up at Halishahar-Kanchrapara (Bijpur) region in North 24 Parganas.
Before partition in 1947 of India, trains used to run upto present day Bangladesh along Gede line and Bangaon line. Now Gede line is used by Maitree Express upto Dhaka and Bangaon line is used by Bandhan Express upto Khulna.
IRCTC opened the first Executive Lounge at this station which is the first in any of the main stations in the state of West Bengal. In 2019, on the occasion of Bengali New Year, the lounge was opened at the station. It is built on the first floor of the station, covering around 2,500 sq ft area, having free Wi-Fi, showers, foods, newspapers, TV, cloak room facilities available. Though on the first floor, it is next to the elevator to make it accessible to wheelchair-bound passengers. 
12259 Sealdah – New Delhi Duronto Express - Departure from platform 9B