This is a city and a Municipality in Rohtas district in the state of Bihar, India, combinedly known as Dehri-Dalmianagar Nagar Palika.

He was assisted by his younger brother Jaidayal Dalmia and son in law Sahu Shanti Prasad Jain in establishing many factories of Rohtas Industries Ltd. in Dalmianagar.

Dalmianagar boasted of vast housing colony, gardens, clubs, schools, market complexes, and hospitals for its employees.

The prosperity of Dalmianagar started to decline in the mid 1970s as the law and order situation in this industrial town began to worsen.

The original contract was to build a 40 km feeder line from Rohtas to the East Indian Railway's Delhi - Calcutta trunk route at Dehri-on-Sone.

Rohtas Industries brought the line up to Tiura Pipradih by adding another 25 km to the DRLR, most of which passed through their property.

After the wartime increase in traffic the railway brought as many as eight new ZB class 2-6-2 tender locomotives, orders for which were equally split between Hudswell Clarke and Krauss Maffei.

At its peak, the DRLR used to operate two daily passengers trains in each direction from Dehri-on-Sone and Tiura Pipradih, a run of 67 km.

Brian Manktelow from London, England decided to unravel the fate of DRLR rolling stock in 1994 and visited the area.

Below is a brief trip report: An unannounced chance visit to the Rohtas Industries works 19 January 1994 proved very fruitful.

Considering that these locomotives had not turned a wheel since the early 1980s, they were indeed in remarkable condition and everyone around spoken to was optimistic that one day the order will come for them to return to service and they will be ready for it!

Dehri Rohtas Railway, 1980/01/14 Rhotas Industries Ltd. No.6 is a broad gauge 0-6-4 tank locomotive built by Vulcan Foundry in 1908.