The correct option is (a) 1 only
Explanation
The Mongol Empire, founded by Genghis Khan, became a significant external threat to the Delhi Sultanate during the 13th and 14th centuries. The Sultanate's policies, particularly under the Khaljis and Tughlaqs, were heavily influenced by the need to defend against these invasions.
Statement-wise Analysis:
- Statement 1 is Correct: The Mongols under Genghis Khan invaded Transoxiana (a region in Central Asia, historically associated with the north-eastern frontiers of Greater Iran/Persia) in 1219 CE. This event occurred in the early thirteenth century. Following this invasion, the Mongols turned their attention toward the Indian subcontinent, forcing rulers like Iltutmish to adopt diplomatic caution to avoid direct conflict.
- Statement 2 is Incorrect: Mongol attacks on the Delhi Sultanate actually increased significantly during the reign of Alauddin Khalji (1296–1316 CE). The Sultanate faced massive invasions in 1299, 1303, 1305, and 1306. To counter this intensified threat, Alauddin Khalji mobilized a large standing army, constructed the garrison town of Siri, and implemented market reforms to sustain his military expenses.
Key Takeaway:
The Mongol threat was at its peak during the reign of Alauddin Khalji, necessitating extensive military and economic reforms, whereas Genghis Khan's activities in the early 13th century were focused on Transoxiana and the frontiers of the Sultanate under Iltutmish.