 Later, she was elected to the Congress Working Committee in 1958 and the next year, she visited a number of East European countries as a member of the parliamentary delegation.In 1967, she contested from Dhekiajuli when her husband vacated the constituency, winning the election representing Indian National Congress and repeated the success in 1971.After the death of her husband on 23 January 1975, Das withdrew from parliamentary politics, concentrating for more social service.