First ruler of slave dynasty was:

A. Janhangir
B. Qutub ud din Aibak 
C. Razia Sultana
D.  Mirza Sultan

🧠 Explanation:

Qutub-ud-din Aibak was the first ruler of the Slave Dynasty in India. Knowing this helps students and history enthusiasts understand medieval India. Aibak’s role is key for studying history or governance in school. Learning this helps with projects or exploring dynasties. It’s useful for history classes, making it relevant for understanding sultanates. Knowing Aibak’s reign helps students grasp his impact, ensuring better comprehension for academic work or general knowledge about India’s early Islamic rulers and their historical significance.