In 1927 the Indian National Congress came out in favour of complete independence from Britain. Bengal had quitened relatively within these four years and the government released most of those interned under the Act of 1925. There was an attempt, ultimately unsuccessful, to forge a Jugantar-Anushilan alliance at this time. Some of the younger radicals struck out in new directions, while many, young and old, took part in Congress activities, such as the anti-Simon agitation of 1928. Congress leader Lala Lajpat Rai succumbed to wounds received when police broke up a Lahore protest-march in October. Bhagat Singh and other members of the Hindustan Socialist Republican Association avenged his death in December. Later Bhagat Singh boldly threw a bomb into the Legislative Assembly. He and other HSRA members were arrested, and three of them attracted wide attention by going on a hunger strike in jail. Bengali bomb-maker Jatindra Nath Das persisted until his death in September 1929. The Calcutta Corporation passed a resolution of sorrow and condolence after his martyrdom, as did the Indian National Congress when Bhagat Singh was executed. As Congress-led movement picked up pace in the early thirties, some former revolutionaries identified with Gandhian political movement and became influential Congressmen, notably among them Surendra Mohan Ghose. Many Bengal Congressmen also maintained links with the Anushilan groups. Anushilan's revolutionary ideology and approach had not, in the meantime, died away. In April 1930, Surya Sen and his associates raided the Chittagong Armoury. The Gandhi-led Civil Disobedience Movement also saw the most active period of revolutionary terrorism in Bengal after first world war. During 1930 alone eleven British officials were killed, notably during the Writer's Building raid of December 1930 BY Benoy Basu, Dinesh Gupta and Badal Gupta. Three successive District Magistrates of Midnapore were assassinated and dozens of other successful actions were carried out during the first half of the decade. But this was a last flare-up before the fire was extinguished. The terrorist movement in Bengal may be said to have ended in 1934. Through the twenties and thirties, many Anushilan members began identifying with Communism and leftist ideologies. Former Jugantar leader Narendranath Bhattacharya, now known as M. N. Roy, became an influential member of the Communist International, helping to find the Communist Party of India. Particularly during the mass detentions of the 1930s around the Civil Disobedience Movement, many members were won over to the party.