He was elected two times as a member of the Bihar Legislative Assembly representing the Bikram Vidhan Sabha constituency from 1969 to 1972 and 1972 to 1974.

Khaderan Singh was born in Village Gorakhri in the Bikram block of Patna district.

Then he became Chairman of the Patna District Board for 12 years from 1948 to 1960 defeating Ram Lakhan Singh Yadav also known as Sher-e-Bihar by one vote.

After becoming Chairman of Patna District Board he provided education and Jobs to 40 to 50 thousand people in various fields.

By fighting the British Khaderan Singh head brought the Bakhtiyarpur-Bihar Light railway which was run by Martin Company under the name RD Light Railway) under the District board at that time Patna Nalanda were together and Khaderan Singh was its chairman.

Due to the sugar mill located in Bihta, the income and standard of living of the farmers of the area improved.

P. Sinha was a famous Doctor of Gaya, there is also a statue of him which was unveiled by the ex-minister of the Bihar government, Prem Kumar.

There is also a statue of him in Bikram, which was unveiled by the former Chief Minister and Union Minister of India, Dr. Jaganath Mishra, the former Leader of Opposition and ex-minister in the Bihar government, Ramashray Prasad Singh, and ex-minister in the Bihar government, Budh Deo Singh.