Trinamool Congress chief Mamta Banerjee on Sunday underwent a successful surgery for removing stones from her gall bladder at a private nursing home in Kolkata.

"The Laparoscopic Cholecystectomy was done successfully to remove stones from her gall bladder. She is now keeping well," TC Mahila Congress president Kakoli Ghosh Dastidar and the nursing home sources said.

Banerjee was admitted to the hospital on Sunday morning following acute pain after which doctors suggested an immediate gall bladder operation, Dastidar said.

The hospital sources said that Banerjee had no other major complaint and she might be released the day after tomorrow.

Banerjee was admitted to a hospital on December 28 at the end of a 25-day hunger strike she had undertaken to protest against "forcible" acquisition of farmland in Singur for a Tata Motors small car plant.

At the time of her release from the nursing home on January 17, the attending doctor Dr Sudarshan Ghose Dastidar had said that she had developed gall stones, which would be surgically removed at a later date.

Addressing a rally at Singur on Saturday, Banerjee said she would take a break for health reasons and would be back soon to take charge of the Singur and Nandigram agitations.