Sushma was wrong in making this kind of a statement, without any solid evidence. I say this as a BJP supporter.
The Congress must think how many of its cadre have been anti-national, and how many of its acts are anti-national? The partition of this country was the biggest act of treason. The killing of Lal Bahadur Shastri in Tashkent is a mystery. The surrender of territory to Pakistan, Hindi-Chini Bhai Bhai, allowing China to back-stab were no patriotic acts.