. Who was the founder of the Delhi Sultanate
C: Qutub - ud - din Aibak
D: Mohammed Ghori
Muslim rule was established first time in Northern India under Qutb-ud-din Aibak, who founded the Delhi Sultanate in 1206 under the Mamluk dynasty.
Hence, the correct answer is option C. Qutub -ud - din Aibak.