K. D. Sethna
 Kaikhosru Dadhaboy (K.D.) Sethna (26 November 1904 – 29 June 2011) was an Indian poet scholar writer philosopher and cultural critic. He published more than 40 books. He is also known as Amal Kiran.Sethna studied at Bombay University and was one of Sri Aurobindo's earliest disciples arriving at the Sri Aurobindo's ashram in 1927 at age 23 to take up the path of Integral Yoga under Sri Aurobindo and Mirra Alfassa. He was given the name Amal Kiran or Clear Ray by Sri Aurobindo in 1930.