What is the theka of teental?

Theka of Teental is a rhythmic cycle in Indian Classical Music comprising 16 beats, divided into four groups of four beats each. It is commonly represented as "Ta - Ti - Na - Ta, Ta - Ti - Na - Ta, Ta - Ti - Na - Ta, Ta - Ge - Na - Na." Teental is widely used in both Hindustani and Carnatic music, serving as a foundational rhythm for various compositions and improvisations.