In $\Delta ABC$, $2(a~sin^{2}\frac{C}{2}+c~sin^{2}\frac{A}{2})=$

Select the type of orchestra to be used in the accompaniment of Vocal from the following:

Kidangoor-Travancore' and 'Kalluvazhi-Palakkad' are two major styles (Sampraday) of which dance?

Which part of "Kramik Pustak Malika" of Pt. Bhatkhande contains the matter of all Ashray Raga of 10 Thaats ?