Wiki information Chellapilla:

Chellapilla Satyam
Music Director, Deceased Person, Person, Musical Artist, Film music contributor

Satyam was a film score composer.

Chellapilla Venkata Sastry
Author, Person, Deceased Person

Chellapilla Venkata Sastry was a Telugu language poet laureate and scholar. He was one of the two poets known as Tirupati Venkata Kavulu and other being Divakarla Tirupati Sastry.