According to the "Mudrarakshasa" version, the king Nanda once removed Chanakya from the "first seat of the kingdom" (this possibly refers to Chanakya's expulsion from the king's assembly). For this reason, Chanakya vowed not to tie his top knot ("shikha") until the complete destruction of Nanda. Chanakya made a plan to dethrone Nanda, and replace him with Chandragupta, his son by a lesser queen. Chanakya engineered Chandragupta's alliance with another powerful king Parvateshvara (or Parvata), and the two rulers agreed to divide Nanda's territory after subjugating him. Their allied army included Bahlika, Kirata, Parasika, Kamboja, Shaka, and Yavana soldiers. The army invaded Pataliputra (Kusumapura) and defeated the Nandas. Parvata is identified with King Porus by some scholars.