Getting from Kolkata Airport to your destination:
1. The Airport is connected by its Biman Bandar station to the Kolkata Suburban Railway system. The 4-km rail track connects the airport station with Dumdum Catonment. However due to lack of patronage, plans are to replace it by an elevated Metro:

2. The current Kolkata Metro expansion plans include two new lines to the airport, one from Noapara connecting at Barasat, and the other from New Garia. Both lines will converge at the airport and form an underground station.

3. Air-conditioned bus services on Volvo buses from within the Howrah station premises, to/from the Airport make 7 to 8 daily  trips at preset fees.

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