The rationalist chap gets cheesed off at being groped and pawed at, and finally agrees to a night-time outdoor ritual. which the channel airs as well. Predictable results, except this time the 'guru' signs off saying the effects of his actions manifest themselves 'gradually'.
[Link: http://www.youtube.com/user/rationalists - check out the videos that say Tantra Challenge - they're all in Hindi though..]
Just as an FYI, I used to be a moderately religious Hindu, and I recognise most of his 'mantras' as really benign, simple stuff that are:
a) Used by children to appease the gods and goddesses of education/knowledge/wisdom
b) Recited during wedding ceremonies