Sounds very interesting - has Sowmya studied opera? More to the point, will she entertain a similar request in a concert setting? That would be awesome.
Not that I know of...I believe she was played a recording and then was asked to have a goat it... Anuradha Sriram though, did undergo some training I think in the US. While the tunes or melodic content are generally childs play for a CM vocalist, it is the sound production that is the key differentiator. Even the softer mezza voce phrases, pianissimi, have to fill a concert hall *without miking*. The Met in NYC for instance is more than twice as large as Narada Gana Sabha! Audience in even the uppermost galleries, while having only a microscopic view of the stage still expect to hear the singer clearly.