Kerala had witnessed a fierce campaign in the run up to the polls by the ruling CPI(M) led Left Democratic Front (LDF), Opposition Congress led United Democratic Front (UDF) and the BJP led NDA.
The ruling LDF is hoping to retain power for a second consecutive term breaking the state's four-decades-old trend of alternating between the UDF every five year.
Sources close to her said the woman leader was likely to resign from her primary membership in the Congress party to contest from Ettumanoor constituency.
The Marxist veteran, wearing a face shield, mask and gloves, was accompanied by party leaders, including CPI(M)'s Kannur district secretary M V Jayarajan.