Understanding Mongol Invasions During the Tughlaq Dynasty

The question asks about the specific Tughlaq ruler during whose reign the Mongol leader Tarmashirin invaded India. The Tughlaq dynasty ruled the Delhi Sultanate from 1320 to 1413 CE. This period saw various challenges, including threats from the Mongols.

Tarmashirin's Invasion and the Tughlaq Ruler

Tarmashirin was a prominent leader of the Chagatai Khanate, a successor state to the Mongol Empire located in Central Asia. Historical records indicate that Tarmashirin led a significant invasion into India during the reign of one of the Tughlaq sultans. To determine the correct ruler, we need to examine the timelines of the Tughlaq rulers and Tarmashirin's activities.

• Ghiyasuddin Tughluq: Ruled from 1320 to 1325 CE. He founded the Tughlaq dynasty and was known for his military campaigns, including repelling Mongols. However, Tarmashirin's major invasion occurred later.
• Muhammad bin Tughluq: Ruled from 1325 to 1351 CE. His reign was marked by various ambitious projects and also faced external threats. Historical sources widely attribute Tarmashirin's major invasion of India to his period, specifically around 1327-1329 CE. The invasion reportedly reached as far as the outskirts of Delhi.
• Firoz Shah Tughlaq: Ruled from 1351 to 1388 CE. While Firoz Shah faced other challenges, the major Mongol invasion led by Tarmashirin did not occur during his reign. His era was relatively more peaceful concerning large-scale Mongol incursions compared to his predecessor.
• Sultan Muhammad: This option is vague as several sultans were named Muhammad. Assuming it refers to Muhammad bin Tughluq, then it's redundant with option 2. If it refers to a later or different ruler, it would not align with Tarmashirin's known invasion period.

Based on historical evidence, the Mongol invasion led by Tarmashirin took place when Muhammad bin Tughluq was the Sultan of Delhi.

Analysis of Options

Let's look at the options provided:

• Ghiyasuddin Tughluq: Tarmashirin's main invasion was not during his short rule.
• Muhammad bin Tughluq: Historical accounts confirm Tarmashirin's invasion during this sultan's reign.
• Firoz Shah Tughlaq: Tarmashirin's invasion predates his rule.
• Sultan Muhammad: Vague, but if interpreted as Muhammad bin Tughluq, it aligns. However, option 2 is more specific and standard.

Therefore, the correct Tughlaq ruler during Tarmashirin's invasion was Muhammad bin Tughluq.

Conclusion on Tarmashirin's Invasion

The Mongol invasion led by Tarmashirin, a significant event during the Delhi Sultanate's history, specifically occurred during the reign of Sultan Muhammad bin Tughluq.

Revision Table: Key Facts on Tughlaq Dynasty & Invasions

Additional Information: Mongol Invasions of India

Mongol invasions of India were a frequent phenomenon starting from the 13th century, primarily targeting the Delhi Sultanate. These invasions originated from the Mongol Empire and later its successor states, such as the Chagatai Khanate.

• The Mongols often raided and sometimes attempted to conquer territories in Punjab and reached as far as Delhi.
• Sultanate rulers like Alauddin Khilji and the Tughlaqs implemented various military and administrative measures to counter the Mongol threat, including building forts, maintaining large armies, and adopting border defense strategies.
• Tarmashirin's invasion during Muhammad bin Tughluq's time was one of the notable Mongol incursions.