Karmaveer Bhaurao Patil was associated with Sir Dhanjisha in starting the foundry in 1922, after he left Kirloskar due to differences.
Karmaveer took the responsibility of marketing of the plough. But unfortunately, the business relations did not go well and he left the Cooper foundry. He then started Rayat Shikshan Sanstha and brought the education to majority of the society. The unparalleled work he had done in education is still going on.
Though Karmaveer had differences with Sir Dhanjisha, he always respected the latter's contribution to the society and industry. In 1939, Sir Dhanjisha donated two diesel engines to the Rayat Sanstha in presence of the then Governor Lord Lamaley. In 1946 Sir Dhanjisha offered Codrington Bungalow to Karmaveer for starting a college in those premises. In spite of lot of differences and the quarrels - which once led to Karmaveer pointing a gun at Sir Dhanjisha - both Karmaveer and Sir Dhanjisha Cooper remained good friends.