Which Carnatic music violinist who was mentored by Chembai won the Madras Music Academy's Sangeetha Kalanidhi award?
T. N. Krishnan
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).
 Known by his village name "Chembai", or simply as "Bhagavatar", he was born to Anantha Bhagavatar and Parvati Ammal in 1896, into a Tamil Brahmin family at Kottayi-I/II near Palakkad on Janmashtami day.
 Chembai was noted for his powerful voice and majestic style of singing.
 His first public performance was in 1904, when he was nine.
 A recipient of several titles and honours, he was known for his encouragement of upcoming musicians and ability to spot new talent.
 He was responsible for popularising compositions like "Rakshamam" and "Pavana Guru", among others.
 The music critic 'Aeolus' described him as "the musician who has meant the most to Carnatic Music in the first fifty years of the 20th century."
 His prominent disciples include Chembai Narayana Bhagavathar, Mangu Thampuran, Guruvayur Ponnammal, T. V. Gopalakrishnan, V. V. Subramaniam, P. Leela, Jayan and Vijayan, K. J. Yesudas and Babu Parameswaran, among others.
 He also mentored and lot of young accompanists, including Palghat Mani Iyer, Lalgudi Jayaraman, M. S. Gopalakrishnan, T. N. Krishnan, Palani Subramaniam Pillai and L. Subramaniam.
 Memorial music festivals have been held in his honour annually since his death in 1974, the most important being the annually celebrated Chembai Sangeetholsavam.
T. N. Krishnan
Trippunithura Narayanan Krishnan (born 6 October 1928) is a Carnatic music violinist.
 He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 1980.
 He is commonly grouped with Lalgudi Jayaraman and M.S. Gopalakrishnan as part of the violin-trinity of Carnatic Music.
Palghat Mani Iyer
Palghat T. S. Mani Iyer (1912–1981) was one of the leading mridangists in the field of Carnatic music.
 He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 1966.
 Mani Iyer was the first mridangist to win the Sangeetha Kalanidhi and Padmabhushan awards of the Government of India.
 He received the Sangeet Natak Akademi Award in 1956. M. D. Ramanathan
Manjapra Devesa Bhagavathar Ramanathan (May 20, 1923 – April 27, 1984) known as MDR was an outstanding Carnatic music composer and vocalist who created a distinctive style of singing rich in Bhava and Laya.
 He was considered for the Madras Music Academy's Sangeetha Kalanidhi award in 1983. M. S. Gopalakrishnan
M.S. Gopalakrishnan, a.k.a. MSG, (10 June 1931 – 3 January 2013) was a violinist in the field of Carnatic music.
 He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 1997.
 He was a recipient of the Padma Bhushan, Padma Shri, Kalaimamani, Sangeetha Kalanidhi and Sangeet Natak Akademi awards, and is commonly grouped with Lalgudi Jayaraman and T.N.Krishnan as part of the violin-trinity of Carnatic Music. Sangeetha Kalanidhi
Sangeetha Kalanidhi or Sangita Kalanidhi (Sanskrit: saṅgītakalānidhi ) ("sangeetha" = music, "kala" = art, "nidhi" = treasure) is the title awarded yearly to an expert Carnatic Musician by the Madras Music Academy.
 It is often considered to be the most prestigious award in the field of Carnatic Music. M. Balamuralikrishna
Mangalampalli Balamuralikrishna (6 July 1930 – 22 November 2016) was an Indian Carnatic vocalist, musician, multi-instrumentalist, playback singer, composer, and character actor.
 He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 1978.
 He has garnered two National Film Awards (1976, 1987), the Sangeet Natak Akademi Award in 1975, the Padma Vibhushan, India's second-highest civilian honor in 1991, for his contribution towards arts, the Mahatma Gandhi Silver Medal from UNESCO in 1995, the Chevalier of the Ordre des Arts et des Lettres by the French Government in 2005, the Sangeetha Kalanidhi by Madras Music Academy, and the Sangeetha Kalasikhamani in 1991, by "the Fine Arts Society", Chennai to name a few. M. Chandrasekaran
Sangita Kalanidhi Dr. M. Chandrasekaran is an eminent Carnatic classical violinist from Chennai, Tamil Nadu, India.
 He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 2005.
 Sri M. Chandrasekharan's connection with music was firmly established over 65 years ago, when he began playing the violin at the age of 11, after which he went on to accompany many stalwarts in the field of Carnatic music.
 Having lost his eyesight at the age of two, he overcame his difficulty by music.
 Deeply appreciative of the importance of not just the lyrics, but also its melody and bhava, the prolific violinist is known for his success in bringing out the subtlest of musical nuances.
 He is also considered an expert in the laya aspects, recognizing and adapting to intricate rhythmic patterns with ease and grace.
 Sri Chandrasekharan also presents vocal concerts, and sometimes sings along during his solo violin recitals.
 He has composed various musical forms in different languages, and has travelled the world performing, enthralling audiences all over.
 He often performs violin duet concerts with his daughter Smt.
 G. Bharathi.
 He has accompanied several stalwarts and doyens of Carnatic music. Maharajapuram Santhanam
Sangeetha Kalanidhi Maharajapuram Santhanam (Tamil: மகாராஜபுரம் ஸந்தானம் ), (December 3, 1928-June 24, 1992) was one of the greatest Carnatic music vocalists of the 20th century.
 He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 1989.
 He was born in Sirunangur, a village in the state of Tamil Nadu.
 He followed the footsteps of his father Maharajapuram Viswanatha Iyer who was also a Carnatic singer. Trichur V. Ramachandran
Trichur V. Ramachandran(born 1940) is a Carnatic music vocalist.
 He was awarded the Madras Music Academy's Sangeetha Kalanidhi in 2012.
 This is the prestigious award from the Madras Music Academy.