Which of the following Mauryan rulers did Seleucus fight against in the Seleucid- Mauryan War?

Chandragupta Maurya

The correct answer is Option 1- Chandragupta Maurya

Seleucus fought against Chandragupta Maurya in the Seleucid-Mauryan War.

Chandragupta Maurya was the founder and first emperor of the Maurya Empire, which ruled over much of South Asia from 322 to 185 BCE. Seleucus was one of Alexander the Great's generals who established the Seleucid Empire in the Middle East after Alexander's death.

In 305 BCE, Seleucus invaded India in an attempt to retake the satrapies (provinces) of the Macedonian Empire that had been occupied by Chandragupta. The two rulers fought a war that ended in a peace treaty in 303 BCE. The terms of the treaty are unknown, but it appears that Seleucus ceded some of his eastern territories to Chandragupta.

The Seleucid-Mauryan War was a significant event in Indian history, as it marked the first time that an Indian empire had defeated a major European power. The war also led to increased cultural and economic交流 between India and the West.