Which book has been written by megasthenes?

Megasthenes, a Greek historian and ambassador, wrote Indica. This book was a detailed account of ancient India based on his observations and experiences during his time in the court of Chandragupta Maurya in the 4th century BCE.

While the original text has been lost, fragments of it have been preserved through the works of later writers like Strabo, Arrian, and Diodorus Siculus. These fragments provide valuable insights into the society, culture, politics, and geography of ancient India.