Islam and tribals 1-2

Islam

Less impact than Hinduism and Christianity. This is because

highly dogmatic stand taken by religion. As per Yogendra Singh Islam ization increased tendency among new converts to new identity based on orthodox Islamic principles. Conscious rejection of syncretism.
Organisation like tablighi jamaat want to remove pre Muslim cultural elements from tribals to maintain Islamic purity
Lack of patronage from Muslim rulers and liberal attitude of sufis.

Tribes. Siddhis of Gujarat. Gurjjarz of Himalayas. Gaddi and bakarwals of Kashmir. Dhankasi and Kotis of Rajasthan.
only place where Islam has been completely adopted is Lakshadweep tribals. Leela Dube 1969.

Impact on seven Muslim Tribes of Lakshadweep - koya, malni, thakru - is that shifted from matrilinity to Patrilinity and Mel authority Rising. For example puberty rites of girls have been given up and father has more rule than maternal uncle. Cross cousin marriages prevailing.

But tribes like Siddhi have been able to retain their traditions and culture unique dress dance and women rights.
18 lakh Muslim tribes census 2011.