Sufi's and Saints were the ones who introduced Islam in subcontinent. It was their their effort that Islam developed its root in India and the concept of spiritualism arose. Hamd(A song or poem in praise of Allah) and Naat(A poetry that praises Holy Prophet Muhammad(S.A.W)) are also believed to be their gift to subcontinent. Sufi's and Saints were also contacted in implementing law and order in subcontinent, played important role in political affairs and also gave moral support to fighters during war. Also Visit Sufism In South Asia.