Hedgewar was arrested twice actually. The first arrest was in 1921 on charges of sedition due to anti-British speeches and served 11 months in Ajani Jail. The second was in 1930 for participating in the so-called "Jungle Satyagraha" in protest of the forest acts imposed by the British that barred tribal and rural people from collecting firewood, grazing cattle, etc. He was sentenced to nine months in Akola Jail before being released in February of 1931.

India doesn't exist in a vacuum. Intolerance by Muslims end up incentivizing intolerance by Hindus. Had Hindus in Bengal been as aggressive towards Muslims as the Dogras and Sikhs and not blindly placed their trust in the Nehru-Liaquat Pact or succumbed to Gandhi's blackmail, the Partition of India would've been bloodier yet the near-total population exchange would've potentially saved millions of Bengali Hindus from the 1950 riots, 1971 genocide, etc. They were ultimately punished for showing relative restraint. The cycle of mutual hostility which leads to dehumanization of Muslims could be nipped in the bud if neighboring Muslim-majority countries were to treat minorities with tolerance. Institutional safeguards alone can only do so much when trust itself has been undermined repeatedly.