N J Nandini won an award named after what Carnatic music singer from Palakkad?
N. J. Nandini: N J Nandini (born 5 August 1991) is a young Carnatic music vocalist from Trivandrum. N. J. Nandini:  who was awarded the Chembai Puraskaram, followed by the Isai Chudai title and the M S Subbalakshmi fellowship. Chembai: Chembai Vaidyanatha Bhagavatar a.k.a. Vaidyanatha Iyer (Malayalam:ചെമ്പൈ വൈദ്യനാഥ ഭാഗവതർ, b. 1 September 1896, d. 16 October 1974) was a Carnatic music singer from Palakkad (state of Kerala, India).
Chembai Vaidyanatha Bhagavatar