Jamanalal Bajaj was interested in initiatives such as the removal of untouchability, promotion of Hindi, and Khadi and village Industries. He had toured across the country promoting Khadi. In 1925, he was chosen as the treasurer of the All India Spinners Association. He was also the president of the "All India Hindi Sahitya Sammelan" (literary convention) that promoted Hindi as the single language to unite all Indians. He was instrumental in publishing Hindi magazines and books. He initiated the Gandhi Hindi Pustak Bhandar (bookshop) in Bombay and started the "Sasta Sahitya Mandal" (publishing house).