Which year North Eastern Railway was bifurcated into two Railway Zones, North-Eastern Railway and North-East Railway?

Correct Answer: 15<sup>th</sup> January, 1958
On 15th January 1958, North Eastern Railway was divided into two Zones (i) the North East Frontier Railway and (ii) the North Eastern Railway with headquarter at Gorakhpur, comprising of five Divisions viz. Izatnagar, Lucknow, Varanasi, Samastipur and Sonepur.