While "TamilYogi" is a well-known third-party site, you can watch legally on several platforms: : Available in HD with subscriptions : Offers the movie for online streaming
The historical embodiment of the Peranmai Tamil Yogi is found in the tradition of the 18 Siddhars (Pathinenn Siddhargal). Unlike the ascetics of other traditions who often practiced severe austerities in isolation, the Tamil Siddhars were radical, poetic, and socially conscious. Peranmai Tamil Yogi