Who among the following Mauryan rulers fought the Kalinga War in 261 BC?

Ashoka

The correct answer is Option 1- Ashoka

Ashoka was the Mauryan ruler who fought the Kalinga War in 261 BC.

The Kalinga War was one of the bloodiest wars in Indian history. It resulted in the deaths of hundreds of thousands of people. The war also had a profound impact on Ashoka, and it is believed to have led to his conversion to Buddhism.

After the war, Ashoka issued a series of edicts in which he renounced violence and advocated for peace and tolerance. He also promoted the spread of Buddhism throughout India.