Harnam Singh was a Member of the Council of the Governor-General of India and of the Legislative Council of Punjab, Member of the Hemp Drugs Commission 1893/94, Member of the Council of State for India.
Manmohan Singh | Maharaja Ranjit Singh | Anurag Singh | Yuvraj Singh | Ranjit Singh | Jagjit Singh | Vijay Singh | Guru Gobind Singh | Bhagat Singh | Karan Singh | Khushwant Singh | Jai Singh I | Hari Singh | Talvin Singh | Simranjit Singh Mann | Parkash Singh Badal | Yograj Singh | Upasana Singh | Tiger Jeet Singh | Satendra Singh | Raj Singh | Mulayam Singh Yadav | Karamjit Singh | Harbhajan Singh | Ajit Singh | Sukhbir Singh Badal | Rawal Ratan Singh | Rajendra Singh | Pradeep Singh | Jaspreet Singh |
Vishnu Ganesh Pingle along with a number of other Ghadarites including Kartar Singh, Harnam Singh and Bhai Paramanand were tried at the Lahore Conspiracy trial in April 1915 by a special tribunal constituted under the Defence of India Act 1915, for their roles in the February plot.