New Delhi–Howrah main line

New Delhi–Howrah main line
Route map of Howrah–Delhi main line
Overview
StatusOperational
OwnerIndian Railways
LocaleWest Bengal, Jharkhand, Bihar,
Uttar Pradesh, Delhi
Termini
Service
SystemElectrified
Operator(s)Eastern Railway, East Central Railway, North Central Railway, Northern Railway
History
Opened1866
Technical
Line length
  • via Patna: 1,523 km (946 mi)
  • via Gaya: 1,445 km (898 mi)
Number of tracks2/4
Track gauge5 ft 6 in (1,676 mm) broad gauge
Electrification25 kV 50 Hz AC OHLE fully operational in 2002
Operating speedup to 130 km/h (80 mph)

The New Delhi–Howrah main line is a railway line connecting Delhi and Kolkata cutting across northern India. The 1,531 km (951 mi) railway line was opened to traffic in 1866 with the introduction of the "1 Down/2 Up Mail" train.