Harigopal Bal joined the revolutionaries .
Harigopal Bal took part in the Chittagong Armoury Raid on 18 April 1930 with his elder brother Lokenath Bal .
Harigopal Bal joined the revolutionaries and took part in the Chittagong Armoury Raid on 18 April 1930 with his elder brother Lokenath Bal .