Smt.Bhargavi Balasubramaniam seems to be a very promising vocalist too.I had heard her Chitravina recital during the Margazhi music season in Chennai few years back.This time I happened to attend one of her vocal concerts.Her concert was brilliant.For those interested,here is a link of her concert reviews.
http://www.rasikas.org/forums/viewtopic.php?id=4644