SANTOSH KUMAR MITRA, INDIAN REVOLUTIOANARY, FREEDOM STRUGGLE, he founded the Swaraj sevai sangha. he was attached with Hooghly Vidya mandir run by Bhupathi Majumdar . he was also jugantar leader..He was arrested for shankaritold murder case and arrested in 1928 On 16 sept 1931 mitrawas shot and killed by police at Hijli detention camp. he became a mgartyr.