Dev collected the certificate of her election from the Speaker and returning officer during the day, an official in the speaker's office said.
Murugan's unopposed election to Rajya Sabha is believed to be almost certain as Congress has already announced about not fielding any candidate.
The TMC has nominated Sushmita Dev for the by-poll which was necessitated after party leader Manas Bhunia vacated the RS seat after winning the recent Assembly elections.
The TMC had last week named Sushmita Dev, who recently joined the party after quitting the Congress, as its candidate for the by-poll.
Madhya Pradesh: Congress not to field candidate for RS bypoll; BJP's Murugan likely to be elected unopposed
The vacancy emerged in Madhya Pradesh after the then Union minister Thaawarchand Gehlot resigned following his appointment as Karnataka governor in July this year.
After the death Satav, Rahul Gandhi in a condolence meeting assured Pradnya Satav that the party will extend all possible support to the Satav family.
Dev, who was one of the national spokespersons of Congress and its women's wing chief, switched over to the Mamata Banerjee-led camp last month.
The Election Commission had on July 16 said that bypoll to the Rajya Sabha seat from West Bengal vacated by Dinesh Trivedi earlier this year will be held on August 9.