5Fish
https://5fish.mobi/ae/92?language=Telugu
They have good Telugu audio messages and hymns.
Bible.is
Please click on the down arrow on the left side. It is the same as the Download link. Please choose Telugu in the pull-down menu.
Christian Fellowship Church (CFC) – India
http://www.cfcindia.com/telugu/audio.php
They have many books, including an autobiography written by Zac Punen, which has been translated into Telugu.
Faith Comes by Hearing
https://www.faithcomesbyhearing.com
Global Recordings Network (GRN)
http://globalrecordings.net/en/language/92/
This is a very good website. They have audio materials.
Please put Telugu on the search engine.
Talking Bibles
https://listen.talkingbibles.org/language/tel/
https://listen.talkingbibles.org
This website is sponsored by Bible Society of India, and has audio messages in India languages.
WorldBibles.org
http://worldbibles.org/language_detail/eng/tel/Telugu
Please put Telugu in the search engine. Please look for the Other links. Many of them are regarding Telugu materials in audio.
World Christian Audio Directory
http://www.worldchristianaudio.org/
This site has information on Christian audio recordings in over one thousand languages.