Track doubling of the Kiul-Gaya section was announced in the Railway Budget for 2010-2011. The Bengal Nagpur Railway system was connected to the East Indian Railway Company lines in 1889, thus connecting Asansol to Adra. In 1907 Adra was connected to the Grand Chord at Gomoh. The construction of the Chandrapura-Muri-Ranchi-Hatia line started in 1957 and was completed in 1961. In 1902, a branch line of EIR was opened from Sone East Bank (later renamed Son Nagar) to Daltonganj. With the development of South Karanpura Coalfield, the Central India Coalfields Railway opened a line from Gomoh to Barkakana in 1927 and from Barkakana to Daltonganj in 1929. These lines were subsequently taken over by EIR. Electrification of the stretch of mainline of this section from Asansol to Netaji SC Bose Gomoh was completed in 1960-61. Electrification of the stretch from Netaji SC Bose Gomoh to Gaya was completed in 1961-62. On the Gomoh-Barkakana branch line electrification was done from both ends: Gomoh to Phusro in 1986-87, Barkakana to Danea in 1996-97, Danea to Gomia and Gomia to Jarandih in 1997-98. In 1965, Asansol-Bareilly Passenger was the first long-distance train on Eastern Railway to be hauled by an AC loco. The Gaya-Jahanabad sector was electrified in 2002-2003. Completion of electrification of the Patna-Gaya rail route before the end of 2003 was announced by the railway minister Nitish Kumar. Asansol is home to the oldest electric loco shed of Indian Railways. It houses WAG-5 and WAM-4 electric locomotives. 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. Bokaro Steel City has a diesel loco shed with WDM-2 and WDM-3A locos. It has a large yard for Bokaro Steel Plant. Most of the Asansol–Gaya section is classified as ‘A’ class line where trains can run up to 160 km per hour but in certain sections speeds may be limited to 120–130 km per hour.