He played an important role in translating progressive literature from foreign languages, especially Chinese literature. Notably, he translated the works of renowned Chinese writer Lu Xun into Hindi. He also wrote extensively about world cinema, with a particular focus on Iranian films.
Comrade Ajay Kumar was closely associated with the CPI(ML) since the 1980s. His home served as a space for party activities and as an important political centre. His life and work reflected his unwavering commitment to the struggles of the toiling masses and marginalized sections of society. Red Salute to Comrade Ajay Kumar.