Jamnalal Bajaj was the only leading businessman in India to cast in his lot with Gandhi, and the only Congress leader of the first rank to be involved equally in Gandhi's political and non-political campaigns. For over 20 years he was in the highest echelons of the Indian National Congress, its Treasurer, and a member of its Working Committee, enjoying the confidence and friendship of national leaders such as Jawaharlal Nehru, Rajendra Prasad, and C. Rajagopalachari. This biography explores his life and career.