She has secured 7,67,219 votes as against 2,93,018 votes bagged by the BJP candidate.
Sajda is the wife of TMC MP Sultan Ahmed, whose death necessitated the bypoll.
CPI(M) candidate Sabiruddin Mollah finished third securing 1,38,792 votes. In the 2014 Lok Sabha poll the party bagged over 3.69 lakh votes in the constituency.
Congress candidate Muddasor Hossain Warsi emerged fourth by securing only 23,108 votes.
CPI(M) candidate Gargi Chatterjee was at number three spot with 35,497 votes.
The bypoll in Noapara was necessitated following the death of sitting Congress MLA Madhusudan Ghose.
Congress, which had won the Noapara seat in the 2016 assembly election, finished fourth as its nominee Goutam Bose secured only 10,523 votes.
The party lost its deposit in both the seats. A defeated candidate who fails to secure more than one-sixth of the valid votes polled in the constituency has to forfeit his security deposit.