The alternate placing (falling) between these is termed Pāta. The simultaneous striking together of both hands is Sannipāta, and Śamyā is the movement of the right hand, while Tāla is that of the left.
In the Yathākṣara Tāla, the Dhruvā is said to be a long syllable. The Tāla formed with Pātas arranged according to syllables is to be known as Yathākṣara.
When long syllables are separately arranged, it is considered as consisting of two Kalās (Dvikala). The doubling of the Dvikala is then to be understood as forming the Catuṣkala (four Kalās).