New Delhi, Sept. 17 -- Lodged in Tihar jail since September 5, former Union minister P Chidambaram was visited by his son on his birthday and greeted by prison officials and some inmates. Jail officials said he had not made any special demands for the day.

At the Tihar jail, he received wishes from the staff of jail number seven, and some inmates also greeted him when he stepped out of his cell, the sources said. Jail officials usually wish inmates on their birthday and even Chidambaram was wished accordingly, they said.

Karti, who visits Chidambaram often in jail, posted online an emotional letter to his father and took swipes at the BJP government.

"You are 74 years old and no 56!!! can stop you," Karti wrote to his father as he wished...