IAC activists caned outside Hooda's home in Delhi

Delhi Police personnel had to baton charge activists of the India Against Corruption on Sunday as they gathered outside the Delhi residence of Haryana Chief Minister Bhupinder Singh Hooda to protest against his government's corrupt dealings in connection with allegations against Congress president Sonia Gandhi's son-in-law Robert Vadra and realty major DLF.

The protest outside Hooda's residence came a day after Congress general secretary Digvijaya Singh put forward 27 questions on foreign funding behind Arvind Kejriwal's NGO.

Kejriwal launched a counter attack against Singh, saying the Congress must first answer the Robert Vadra issue.

Kejriwal also challenged Congress president Sonia Gandhi, Prime Minister Manmohan Singh and general secretary Rahul Gandhi to engage him in a public debate on the issue of corruption.

Kejriwal, using the medium of the micro-blogging site Twitter, said: "I request Digvijay to encourage Gandhi, PM or Rahul Gandhi to come for a public debate. Place and time of their choice. Let's question each other n let public question us on personal and public issues. Digvijay ready? We had put some questions to Robert Vadra & the PM. Let them answer first. Then, we will answer."

Digvijaya Singh on Saturday posed a number of questions to Kejriwal raising doubts about off-shore funding of his NGO and asking why he never raised issue of corruption in BJP-ruled states. Singh sent the activist a list of 27 questions asking him to "respond to them with clarity and honesty as you demand from others."