New Delhi, Dec 9 (IANS): The BJP on Wednesday challenged the Congress to produce evidence in Parliament about their allegations that the Prime Minister's Office (PMO) was indulging in 'political vendetta' in the National Herald case.

Congress vice president Rahul Gandhi on Wednesday said the National Herald case was a "pure political vendetta coming out of the PM's office".

"We are challenging the Congress that whatever allegations Rahul Gandhi has levelled against the court and the PMO, he must produce all the evidences regarding this in the house and in front of the nation. 

"We challenge them. We can understand, in such a situation when they have been summoned by the court, out of anxiety, they are making statements which are undemocratic," said Minister of State for Parliamentary Affairs Rajiv Pratap Rudy.

A court here on Tuesday asked Congress President Sonia Gandhi, Rahul Gandhi and others to appear before it on December 19 in connection with a complaint filed by BJP leader Subramanian Swamy in the National Herald newspaper case.