Q. How many dynasties of Delhi Sultanate ruled India?
Answer: 5
Notes: The Sultanate period of Delhi was divided into 5 distinct periods viz.
a) Slave dynasty (1206-1290)
b) Khijli Dynasty (1290-1320)
c) Tughlaq Dynasty (1320-1414)
d) Sayyid Dynasty (1414-1451)
e) Lodhi Dynasty (1451-1526)

3