Wazerganj may be the town known as Wazirganj in Gaya District of Bihar. Late Mr. Dasrath Manjhi had craved out a road between Atri and Wazirganj over a span of 22 Years as per this Wikipedia Article.
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PS: Hat's off to the people of Magadh Area (Now Gaya District) of Bihar like Mr. Dashrath to show us the value of physical work and struggle. Thanks to Mr. Nawazuddin Siddique for playing his role and to the film's Director Mr. Ketan Mehta. It's about time that WZJ Railway Station is linked to Atri and Gehlaur villages by the Indian Railways. WZJ should also be upgraded to an A Level Station for trains like the Howrah - Gaya Express via Kiul :-)