Bose bluntly accused the Hindu Mahasabha of being more interested in the downfall of the Congress than in the independence of India. In a March 1940 editorial, he wrote that the Hindu Mahasabha had colluded with the British in the Calcutta Municipal Election at the expense of Indian parties: https://thelogicalindian.com/opinion/subhas-chandra-bose-modi/?infinitescroll=1

Subhas Chandra Bose Was A Fervent Critic Of Savarkar, One Of PM Modi’s Biggest Heroes