New Delhi, March 02 (ANI): Bharatiya Janata Party (BJP) on Wednesday remained firm on its allegation against former home minister P. Chidambaram in connection with the Ishrat Jahan murder case. Union Road Transport and Highways Minister Nitin Gadkari said it's clear from the facts that whatever happened during UPA rule in the Ishrat Jahan case under the UPA rule was 'anti-national'. Echoing similar sentiments, Union Parliamentary Affairs Minister Venkaiah Naidu said the Congress should debate over the issue in the Parliament.