Topper of National Institute of kathak- Acharya Pratishtha mesmerised her viewers when she did 2 taals together and presented the real KATHAKYOGA... right hand- chautal (12 beats) and left had teentaal... to view it live check out these links
http://youtube.com/watch?v=irrTBV1dE94

http://youtube.com/watch?v=XdR7QP-THhc