Telugu Keerthanlu is a handy app featuring Annamayya, Sri Ramadasu, and Thyagaraja keerthanalu(songs).

Annamayya is a Hindu saint of the 15th century and the earliest known Indian musician to compose songs. She is also the mother of Satyarama.

Sri Ramadasu is a popularly known figure in Hinduism and is considered an avatar or reincarnation of the Hindu god Vishnu. He is one of the deities worshiped in the Hindu religion and is also widely worshiped in other religions such as Jainism and Buddhism.

Thyagaraja is a famous composer in India and is known for his songs on Lord Rama. He is one of the best-known and most respected composers in India and is also famous in other countries.