Raebareli (UP), May 31 (PTI) : Congress President Sonia Gandhi today hit back at the government on the charges against her son-in-law Robert Vadra saying it's a part of a conspiracy of levelling false allegations in its bid for a "Congress- free" India."

She dared the government to order an impartial probe if there is something in which she said the truth will come out.

On a visit to her Parliamentary constituency, Gandhi was asked by newsmen on reports citing a probe by Income Tax department into transactions of an arms dealer and his links with Vadra, especially with regard to ownership of a house in central London.

"This is a conspiracy for Congress-free country. What is the meaning of Congress-free India. Everyday they make new excuses. They level false charges. If there is something, then there should be an impartial probe. Everything will become clear," she said.

News reports today quoted from purported papers seized by the IT department during searches last month on the arms dealer's premises that allegedly led to a trail of emails between Vadra and his assistant on the one hand and the dealer's aide on the other regarding the purchae of a London house for approximately Rs 19 crore in 2009 which was subsequently said to have been sold.

Vadra's legal firm have denied that he owned the London property directly or indirectly. It alos denied Vadra has any business ties with Bhandari or his aide.