Which group is credited with Islam gaining major inroads into the Indian subcontinent after Muslim trade had first introduced the faith?

Mumluks, the group, are credited with Islam gaining major inroads into the Indian subcontinent after Muslim trade had first introduced the faith. Thus, the option (c) is correct.
What is Islam?
Muslims are referred to as practicing Islam. To Muslims, worship is significant. Allah, the name of God, is worshiped according to Islam. Surrendering himself as a Muslim. Muhammad is God's messenger, and there is no deity other than him. Islam calls for total surrender to Allah in all aspects of life.
In the Muslim world, the Mumluks—also known as non-Arab slave soldiers—serve as the military arm of Arab dynasties. Following the first introduction of Islam through Muslim trade, the Mumluks are credited with making significant inroads into the Indian subcontinent.
Therefore, option (c) is correct.
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