Which statement was one of the reasons for the successful invasion of northern india by muslim rulers in the late 1100s?
hindu princes followed the principle of nonviolence and did not oppose the invading armles.
muslim invaders came to india on the pretext of establishing trade relations and staged coups from within before taking control of northern india.
muslim invaders established alliances with sikh princes, and their combined military might resulted in the successful invasion of northern india.
hindu princes wasted resources battling one another instead of uniting against a common enemy.

Hindu princes wasted resources battling one another instead of uniting against a common enemy

Explanation:

In the period when the Mughal Empire was on the rise and started to move toward the Indian subcontinent in order to conquer it, the Hindu princes were fighting against one another. There was not a large and unified Hindu nations, but instead there were multiple smaller ones that were constantly wasting their resources on fighting with one another. The Mughals used this situation and managed to conquer the northern part of India without any particular problem. This led to the establishment of the first Muslim Empire on Indian soil, and that led to Islamization of lot of people in that area over the course of several centuries.

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is this question from a book? ?