In 1907 Adra was connected to the Grand Chord at Gomoh with a 1,676 mm (5 ft 6 in) wide [[5 ft 6 in (1,676 mm) broad gauge|broad-gauge]] line.[3] The construction of the 143 kilometres (89 mi) long broad gauge Chandrapura–Muri–Ranchi–Hatia line was started in 1957 and was completed in 1961. The construction of this line included the conversion of the narrow-gauge Kotshila–Ranchi line to broad gauge.[2][4]
The narrow-gauge Purulia–Kotshila sector was converted to broad gauge in 1992.[5]
Electrification
The Gomoh–Chandrapura–Phusro sector was electrified in 1957–58, Rajabera-Bokaro Steel City in 1986–87, Bokaro Steel City yard in 1988–89, Radhagaon–Muri–Kita in 1998–99, Kita–Namkom in 2000–2001, Namkum–Ranchi–Hatia in 2001–2002, Purulia–Kotshila in 1998–99.[6]
Loco sheds
Netaji SC Bose Gomoh has an electric loco shed with capacity to hold 125+ locos. Locos housed at the shed include WAG-7, WAG-9, WAG-9I, WAP-7. WAP-7 locos serve the prestigious Howrah Rajdhani Express.[7]