When Lord Hanuman Indulged in the fight with Ahiravana, he discovered that it had been impossible to kill Ahiravana inside of a struggle, and there has to be some magic formula about his death. The Hanuman Temple is located in the old town of Hampi. It’s a well known pilgrimage https://www.youtube.com/watch?v=ufkmD95y7fE&t=1s