New Delhi, April 21 -- The Congress on Monday mounted an attack on BJP MP Nishikant Dubey, who has been in the eye of the storm over his remarks on the Supreme Court with party leader Sandeep Dikshit suspecting the latter's knowledge about the Constittution.

Dikshit told ANI, "Nishikant Dubey is known to speak anything, I suspected that he would not have knowledge of the Constitution, but now this has been confirmed...If Nishikant Dubey does not understand this system, then I don't know on which Constitution he took oath to become an MP. It is given in our Constitution that if a person feels that any government decision is not fair or logical, then they can go to court. We have gone under the same provision...People of his own party have...