57. Rāvaṇa Sends Prahasta [Rāvaṇa decides to send Prahasta to the battle field. He tells Rāvaṇa that he should have returned Sītā. With a huge army, in spite of bad omens, he comes out of the eastern gate.] When he heard about the killing of Akampana, the king of Rākṣasas after becoming very angry, with a depressed face looked over