Most of historians and leaders in their works blame aryasamaj activities like Shuddhi, literary works as a cause of communal tensions in early part of 20th century. This Is result of half baked stories with real facts hidden, mindset of authors and up to a point anti stand of congress and mahatma Gandhi against aryasamaj.
Since its establishment of aryasamaj and army of swami dayanand saved thousands of Hindus from conversion which was always and hidden agenda of Muslims as well as Christians. The aryasamaj came into scene as it opposed this radical approach stand by others. Better to say its role was as soldiers of Hinduism with mission to save the dying race. The narrow minded sects were not able to bear this and started negative propaganda against aryasamaj as they considered aryasamaj as their biggest opponent in tabligh (conversion) mission.