From Nataraja Ramakrishna:
"He was the architect of the revival of the Andhra Natyam dance form, a devotional temple dance tradition performed in Andhra Pradesh for over 400 years until virtually extinct..He is also known for reviving Perini Shivatandavam, 700 year old dance form and brought international fame to it along with Kuchipudi -another traditional dance form. On request of the then Chief Minister of Andhra Pradesh, Neelam Sanjiva Reddy he established Nritya Niketan - a dance school at Hyderabad. "
A semiauto biagraphical bookARDASHATABDI ANDRA NATYAM. syllabus for a course
ANDHRA NATYAM-SILABAS-VAKYANAM and a few more books by him here and here. All in Telugu. I browsed through the first and found them quite interesting with lots of information about great dancers of yesteryears, discussion on various forms of dances in Andhra as well as other parts of India, lines from a number of songs...
Obituaryin Narthaki and 'The Hindu'. I hope that somebody like Paruchuri Sreenivas will write about him som day and put his work in perspective.