Does the maligning of non-gandhian fighters by some congressmen show that they are anti-national fanatics?

You got some good answers. In fact there is nothing remain in the congress to expose. Since the regime of semi-fascist Indira Gandhi, the congress ditched its own burials. Gandhiji in his life time once said 'need of congress' existence is over'. So congress as a political party is now a 'decomposed' party don't expect any positive and human face from them.