Raja Raghubar Singh was born in 1876 and raised in the Rajput manner at Jhandipurwa. He learned Persian and Sanskrit at home and was later sent to the Government High School at Lakhimpur, where he studied English.
Family affairs soon drew him away from study. A civil suit had been filed against the whole estate by Rani Parbati Kunwar, wife of Raja Debi Bakhsh Singh of Mallanpur, who claimed to be the heir of her father, Raj Milap Singh. The case went up to the Judicial Committee of the Privy Council and was finally decided in his favour.
The colonial government made him an Honorary Magistrate, recognised his title of “Raj”, and gave him a seat in Durbar as his family's representative. He was also connected by marriage and kinship to several Rajput houses, among them the Kachwaha Sirdars of Tanira and the Keonthal family of the Simla Hills.