Career
He is presently serving as a minister of Parliamentary Affairs and Food and Supply Department in the BJP led government in the state of Jharkhand. He was first elected as an Modern Language Association from Jamshedpur-West seat in 2005. He lost the 2009 assembly seat by a narrow margin of around 3000 votes to the then Incorporated candidate Banna Gupta.
Prior to this, in the undivided Bihar he served as an MLC for a six year term from 1998 to 2004.
Rai is known for his crusade against corruption. He exposed the Fodder Scam in Bihar, which led to jail sentences for many senior politicians, including the then chief minister Lalu Yadav.
He also exposed the corruption of over Rs. 8000 crores in the Iron Ore Mines allotment scam under the then chief minister, Madhu Koda.
He has five sisters all except one are elder to him, besides a younger brother, Yamuna Rai who looks after ancestral farming in the village.
He completed his high school education up to class XI at Block Headquarter Itarhi and was awarded National Merit Scholarship after passing matriculation exam conducted by Bihar School Examination Board in 1966. He is a graduate in Physics from Science college, Patna.He also holds a Masters Degree in the same subject with Spectroscopy as special paper from Patna University in 1970-1972 batch.