आज लुम्बिनीमा पुगेको राजेन्द्र महत्तो मोर्चाको सभामा बोल्दा बोल्दै महत्तो माथि दूँगा र इट्टा ले हानेर टाउको फुटाइदिए ! टाउकोमा गंभीर चोट>

started his political calling from 1990.[1] In the 1994 parliamentary choice, he stayed as the Nepal Sadbhavana Party rival in the voting statistic Sarlahi-2. He came next with 10173 votes. In the 1999 parliamentary race he won the seat with 14750 votes, conquering past Prime Minister Surya Bahadur Thapa of the Rastriya Prajatantra Party.[4] In 2007, Mahato split a long way from NSP(A) and encircled his own particular social affair, which later picked up the name Sadbhavana Party[5] Mahato surrendered from the interim parliament on January 19, 2008.[5]

In April 2008, he won the Sarlahi-4 arrange in the Constituent Assembly election.[6]

Mahato lost his seat in the 2013 constituent social affair races to Mahendra Rai Yadav of the Terai Madesh Sadhbhawana Party Nepal.[7] The get-together chose his significant other Sahil Devi Mahato to the Constituent Assembly from the five seats consigned to the get-together under relating representation.[8]

Mahato has also transformed into a pioneer for the Madhesi people, and communicated stresses over Nepal's proposed constitution, calling it a ploy to mistreat the Madhesi.