He met Thakur Singh Sandhanvalia at Patna while on leave from Nepal. Thakur Singh sought Buddh Singh`s assistance to further the cause of Maharaja Duleep Singh and to secure for himself entry into Nepal. Buddh Singh was at Amritsar when Thakur Singh left for Pondicherry, where he became prime minister to Maharaja Duleep Singh`s emigre government. He stayed at Thakur Singh`s haveli from where he distributed Thakur Singh`s letters and messages to his friends. Buddh Singh was arrested in November 1887 and detained in the Chunar Fort. He was released in December 1890.
References :
1. Ganda Singh, ed.. History of the Freedom Movement in the Punjab (Maharaja Duleep Singh Correspondence). Patiala, 1977
2. Harbans Singh, The Heritage of the Sikhs. Delhi, 1983