- Mahapadmananda after coming to power took a determination that he would eliminate all Kshatriya from Magadha
- called Ugrasena or Ekarata due to aggressive attitude
- occupied some parts of west Odisha
- most imp ruler → Dhanananda
- built strongest army of the time
- during his tenure, ruler of Macedonia, Alexander started his campaign for the East
- on the banks of river Jhelum in Battle of Hydaspes (326BC), Alexander defeated Porus (ruler of Jhelum).
- Impressed by his bravery, Jhelum restored to Porus and he became his ally
- Alexander wanted to enter Magadh to fight with Dhanananda but was stopped by his army (exhausted due to continuous fighting 🥴)
- Dhanananda saved from Alexander, but could not defend himself Chandragupta Maurya ⚔️