It is very fashionable among the Indian dhimmis, including some so-called nationalists to praise Sufism, it's "syncretic culture" and it's alleged "moderation" to the skies.
Therefore, one should not lose sight of these pertinent facts about it.
True Face of Sufism
"But the evidence that is available points towards a contrary conclusion. The Chishtiyya school was foisted on India by Muin-ud-din who had settled down in Ajmer before the Second Battle of Tarain. According to the sufi lore, he had made a few converts from among the local Hindus and started issuing orders to Prithivi Raj Chauhan, the Hindu king, for the benefit of these converts. When the king ignored him, he invited Muhammad Ghuri to invade the Chauhan Kingdom. Sir-ul-Awliya, the most famous history of the Chishtiyya school written by Khwaja Amir Khurd, another disciple of Nizam-ud-din Awliya, tells the following story: ?His [Muin-ud-din?s] blessed tongue uttered spontaneously, ?We have handed over Pithora alive to the army of Islam.? In those very days, Sultan Muiz-ud-din Sam arrived in Ajmer from Ghazni. Pithora had to face the army of Islam. He was captured alive by Sultan Muiz-ud-din? The Khwaja [Muinud-din] was a worker of great wonders. Before he reached Hindustan, all its cities right upto the point of sunrise were sunk in tumult and infidelity and were involved with idols and idolatry. Everyone among the rabble [Gods] of Hindustan claimed to be the great God and a co-sharer in the divinity of Allah. The people paid homage to stones, sods of clay, trees, quadrupeds, cows and bulls and their dung. The darkness of infidelism had made still more firm the seals on their hearts? Muin-ud-din was indeed the very sun of the true faith. As a result of his arrival, the darkness that had spread over this country was dispelled. It became bright and glowed in the light of Islam... Anyone who has become a Musalman in this country will stay a Musalman till the Day of Dissolution. His progeny will also remain Musalman? The people [of Hindustan] will be brought out of dAr-ul-harb into dAr-ul-IslAm by means of many wars."7
There is plenty of primary literature available in Arabic and Persian regarding the rise, development, and doings of numerous sufi silsilas in India. Some of this literature has been translated into Urdu and English as well. A study of this literature leaves little doubt that sufis were the most fanatic and fundamentalist elements in the Islamic establishment in medieval times. Hindus should go to this literature rather than fall for latter-day Islamic propaganda. The ruin of Hindus and Hinduism in Kashmir in particular, can be safely credited to sufis who functioned there from the early thirteenth century onwards. "