Mallalli Falls is near Somvarpet in Coorg region of Karnataka. It is one of the choice of waterfalls in your list for Coorg- apart from Iruppu Waterfalls or Abbey Falls. The water drops from a height of 200 meter from Pushpagiri hill.
This waterfall is around 60 kilometers from Madikeri. It is a seasonal waterfall and will be at its best during June to September. The drive to Mallali falls will be adventurous along with a trek to Pushpagiri or Bisleghat. Pushpagiri is famous for bird watching. One can explore this waterfalls with some of the homestay options available near the place here.