Two Ramdev supporters were arrested, police said.
According to eyewitness, a group of around 15 Ramdev supporters shouted slogans and blackened the portrait of Congress president Sonia Gandhi on a board outside the party office at 24, Akbar Road around 5 pm.
As they came to know of the incident, Congress workers came out of the office and clashed with the Ramdev supporters, in full view of the TV cameras and media persons.
A Congress leader told that the protesters were planning to disrupt the party press briefing scheduled at 5pm.
The incident comes after Ramdev faced an ink attack at a press conference here Saturday. The yoga guru's supporters alleged that the attack was masterminded by the Congress.
