Around 1872, the
Indian Branch Railway Company was transformed into
Oudh and Rohilkhand Railway. Oudh and Rohilkhand Railway was merged with
East Indian Railway Company in 1925. The Government of India took over the Bengal and North-Western Railway and merged it with the Rohilkhand and Kumaon Railway to form the
Oudh and Tirhut Railway in 1943. In 1952,
Eastern Railway,
Northern Railway and
North Eastern Railway were formed. Eastern Railway was formed with a portion of
East Indian Railway Company, east of Mughalsarai and
Bengal Nagpur Railway. Northern Railway was formed with a portion of East Indian Railway Company west of Mughalsarai, Jodhpur Railway, Bikaner Railway and Eastern Punjab Railway. North Eastern Railway was formed with
Oudh and Tirhut Railway, Assam Railway and a portion of
Bombay, Baroda and Central India Railway. East Central Railway was created in 1996–97. North Central Railway was formed in 2003. ==References==