Bharata's Natya Shastra states in Chapter 28, Shloka 24 that S' is situated on the 4th shruti (after n1), M1 is situated on the 4th Shruti (after g1), P is situated on the 4th Shruti (after M1), R1 is situated on the 3rd Shruti (after S', the cycle repeats from the beginning), D1 is situated on the 3rd Shruti (after P), g1 is situated on the 2nd Shruti (after R1), and n1 is situated on the 2nd Shruti (after D1). Chaturdandi Prakashika (Sanskrit) by Pandit Venkatamakhin in Shloka 105 and 106, Chapter 4, narrates the same sequence of Shrutis as,