(A) Alauddin Khilji was the first ruler who laid foundation of a permanent standing army.

(R) He also started the system of Chehra, i.e., giving a kind identity card.

1. (R) contradicts (A)
2. (A) is the reason for (R)
3. (A) is true but (R) is false.
4. (A) and (R) are independent of each other.

Who was the founder of the Slave dynasty in India? Give the other name of this dynasty.

State any two architectural features of Qutub Minar.

Mention any two military reforms introduced by Alauddin Khilji.