Flipkart has been selling music online in India for almost a year now. The company offer DRM free MP3 files that can be downloaded on your computer or mobile devices.
A member of the India Broadband Forum mailed Flipkart support asking about the validity of their 1 year celebratory offer which is giving away 100 music albums for free every day for 10 days.
Here is the most interesting part of the mail response. Flipkart Support say that MP3s are available for download for a period of one year from the date of purchase.