Sardar Bhupinder Singh Mann, born in Gujranwala (now in Pakistan) on 15 September 1939 was nominated to the Rajya Sabha in 1990 by the Honorable President of India as recognition to his contribution to the farmers' struggle.
He had the zeal to fight corruption from the very beginning which was deeply inculcated in him by his mother Smt Harbans Kaur, who faced the brunt of dislocation during the partition of India in 1947.
Took a pledge over blood in the market yard Batala, not to fall prey to corrupt officials, uprooting bribery in purchase of paddy by FCI.
He also led an agitation for providing support price of potatoes, which the State Government had to accept as demanded by the farmers.
He was arrested in 1979 along with farmers from many states when they participated in Agitation in 1979 against taking over of Charagah at Vill Kanjhawala, in Delhi.
In 1984, he was elected National President Bharti Kisan Union 1984 and re-launched the agitation for defying for Zonal Restrictions of movement of wheat.
In 1989, he was nominated as Member of Consultative Committee of Punjab State Electricity Board, PSEB for the term of 1989–1990.
He being a Sitting Member of Rajya Sabha was arrested along with hundreds of farmers while breaking un-announced restrictions on movement of wheat.
Alarmed, he led thousands of farmers to pray and pledge before Shri Akal Takhat Sahib, Amritsar, not to commit suicides, but to fight against anti-farmer policies, on 15 August 1998.
Sharad Joshi and other renowned scholars at Chandigarh, to highlight the rights of farmers to be liberated from the unconstitutional and inhuman economic blockade.
In 2003 he led a successful Agitation against the Punjab Government (Congress which his party had supported to Power) to get the arrears of sugarcane, by organising a massive Dharna, at National Highway at Dina Nagar, Gurdaspur district, and afterwards Gheraoing DC Gurdaspur Office Complex for continuous 16 days.
He led a massive Kisan rally in front of Parliament of India in New Delhi highlighting lower than cost of production procurement prices of food grains, paddy, wheat and sugar cane and payment of arrears of sugar cane in 2003.
In 2005, he was invited to attend the World Agriculture Forum meet at St. Louis, USA from 16–18 May 2005 on the issue "The key to Peace, Security and Growth- Local Regional and Global Agri Food System".
In 2012, he and his BKU fully supported the Congress party under the command of Capt Amarinder Singh because of his pro farmer approach, clean governance and administrative skills.
Gandhi was convinced and he deputed a team to visit Punjab to carry out a detailed study on this aspect.
Jai Ram Ramesh, the then Rural Development Minister to request him to include small and marginal farmers in the MNREGA.
However, he on behalf of BKU and KCC submitted his strong opposition (2015) to any dilution to this Act before the committee headed by SS.
In 2016 he led a delegation of BKU to meet the Chief Electoral officer Punjab requesting him to make the election manifesto legally binding document.
He canvassed for Congress candidates in many constituencies and highlighted the leadership qualities of Capt Amarinder Singh and his pro-farmer work done during his last tenure.
From here he launched a uniqu andolan "Jo vada kia vo nibhana padega" to force Modi Government to fulfil his poll promise of implementing Swaminathan Report.