Iruppu (or Irpu or Lakshmana Tirtha) Falls of the Lakshmana Tirtha River lies on the Karnataka side of Brahmagiri. According to legend, when Rama and Lakshmana were searching for Sita, they became thirsty. Lakshmana shot an arrow into the Brahmagiri from which the river sprang. Rama is said to have dedicated a Shiva Kshethra known as Rajeshwara Temple on the banks of river Lakshmana Tirtha. The Lakshmana Tirtha river eventually flows into the Kaveri River. One Jain Temple is also present here built by Kadamba dynasty. Nishani Motte is a peak in Brahmagiri range of hills.