The sudden twist had immensely shocked the TMC members as the party's Chief Ministerial candidate has lost the race when the party has got a resounding majority to form the new government.
In what has become a major admission, it has come a day ahead of the second phase of the eight-phased assembly polls in which her Nandigram constituency will go for voting.
However, the recent audio clip had sparked outrage and went against Mamata Banerjee at a high time when the polling has begun in a key battleground state.
Besides being the opposition party, Mamata had recently developed a strong feud with the Central ruling BJP after some of her legislators had switched side and joined BJP.
The Chief Minister said that she was injured after being attacked by some people during her campaign trail in Nandigram, the constituency where she will be contesting in the upcoming assembly polls.
While the TMC supporters claimed that the attack was plotted, the opposition parties in the state including BJP, Congress, and Communist had labeled the incident as 'drama'.