Solution:Brihadratha was the last ruler of the Mauryan Empire.• He ruled from 187 to 184 ВСЕ, when he was killed by his general, Pushyamitra Shunga, who went on to establish the Shunga Empire.
In 326 BC, Alexander invaded India, after crossing the river Indus he advanced towards Taxila.
He then challenged king Porus, ruler of the kingdom between the rivers Jhelum and Chenab.
• The War of Vitasta or Hydaspes river fought between (326 BC) Alexandar and Porus on the bank the Jhelum river. Alexander conqured the war.