Final answer:
Members of the Sudra and Pariah castes might have converted to Islam under the Delhi Sultanate to escape social discrimination, gain political power, and seek economic advantages.
Step-by-step explanation:
Members of the Sudra and Pariah castes might have converted to Islam under the Delhi Sultanate for various reasons. One reason could be to escape social discrimination and seek equality. By converting to Islam, they could potentially improve their social standing and increase their chances for upward mobility. Another reason could be to gain political power and control over trade routes. Converting to Islam might have provided them with opportunities to access Islamic trading networks and potential business partners. Lastly, members of these castes might have converted due to the imposition of heavy taxes by the Sultanate. Islam allowed them to be exempt from certain taxes and potentially relieve some financial burden.