Definition:
A digital audio file made available on the Internet for downloading to a computer or mobile device, typically available as a series, new installments of which can be received by subscribers automatically.  The term Podcast is actually a portmanteau of iPod and Broadcast.

However, we now have several portals besides Apple offering Podcasts. Given below are links to the SudeepAudio.com podcast called #converSAtions.

The videos below share more information and practical tips on Podcasting. You can buy the required equipment and software in India here