Mongols of central Asia were a menace that threatened the Delhi Sultanate time and again. Arrange the following events chronologically

Q. Mongols of central Asia were a menace that threatened the Delhi Sultanate time and again. Arrange the following events chronologically:

1. Jalaluddin Mangbani’s return
2. Halagu’s envoy to India
3. Mongols domestic troubles in Transoxiana
4. Chengiz Khan’s death Choose the correct code:
   (a) 1, 2, 4, 3
   (b) 1, 4, 2, 4
   (c) 4, 2, 3, 1
   (d) 3, 4, 1, 2
   Ans: (b) 1, 4, 2, 4