Upendra Nath Biswas

He is widely known for his probe into the Fodder Scam and for bringing down the once-powerful RJD leader and Bihar Chief Minister Lalu Prasad Yadav in 1997.

[6][7] He joined the West Bengal Police as an IPS officer in 1968, serving as a DSP in charge of an EFR Company, a Subdivision, Addl.

[8][9][10] He retired as the additional director of India's Central Bureau of Investigation (CBI), which he served as an officer of the Indian Police Service (West Bengal cadre, 1968 batch).

He first became a news-maker by relentlessly pursuing former Chief Ministers of Bihar, Jagannath Mishra and Lalu Prasad Yadav in the ₹950 crore (US$110 million) Fodder scam as the joint Director (East), CBI.

[16] He created a controversy by seeking the help of the Indian Army in rushing to arrest Lalu Prasad Yadav,[17][18] following which he was harassed by his department and the political establishment.