Explanation: Dhanananda: Last important king of the Nanda dynasty. Identified with the Agrammes or Xandrames of Greek classical writers.

• Credited with a huge army; it is believed that Alexander attacked Punjab during his reign, but his huge army checked them from advancing towards Magadha.
• Credited with the invention of Nandopakramani (a particular measuring standard).

Source: Tamil Nadu NCERT