Born in 1926 in Nagaur District in Rajasthan, Lodha graduated with BCom and LLB degrees at Jaswant Collge, Jodhpur. He participated in the freedom movement and was imprisoned in 1942. He joined politics and was the President of Rajasthan state unit of Jan Sangh from 1969 to 1971.
Justice (retd) Guman Mal Lodha has been a Judge in Rajasthan High court and Retd as Chief Justice of Guwhati High Court. He has been a eminent worker for the cause of Animals and Cows in India. He was the Chairman for Animal Welfare Board of India and Cattle Commission of India.