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
Start a Podcast in 11 Steps
Recording a Voiceover or Podcast
Equipment and software needed
Record better audio at home