Dr M. Lalitha and M. Nandini have been widely acclaimed as outstanding South Indian classical violinists of the present generation. They hail from the Sishya Parampara or the direct lineage of Baluswamy Diksitar, brother of one of the musical trinity  Muthuswamy Dikisitar who was responsible for bringing the violin into the firmament of South Indian classical music and also belong to the Sishya Parampara or the direct lineage of the Trinity - Saint Tyagaraja,  Muthuswamy Diksitar and Syama Sastri and Harikesanallur Muthiya Bhagavathar. They also learnt from their mother . Subhalakshmi Muthuswamy.

Lalitha and Nandini are regarded as highly imaginative virtuoso violinists. They have been applauded by both connoisseurs and laymen alike for their original and unique style of violin playing. Their violin playing is known to be replete with ragabhava. They have specialized in playing varnam-s in 5 grades of tempo and in playing Kalpana Svara-s in 3 grades of speed, which is a prominent and unique feature of their style of Violin playing. They enrapture their audience with imaginative improvisations and intricate rhythmic patterns fused with melodic sweetness

LALITHA and NANDINI have performed in several Radio and TV networks and have been featured by many recording companies like AVM Audio, HMV, Music Today, Pan Music, RPG, Sony, Kosmic, Dreams Audio, EL. V. Audio, Gitaa, Prashanti Nilayam (live), Raj Video Vision, Sangeetha, Santhananda Sounscapes, Saragam to name a few.

M. LALITHA has been awarded the degree of DOCTOR of PHILOSOPHY (Ph. D) in Indian Music, from the University of Madras for her thesis `A Comparative Study of the Violin Techniques in Western and South Indian Classical Music’ while M. NANDINI holds Triple Master's Degree - one in Information Science from the University of Madras - one in Indian Music from the Mother Teresa’s Women’s University, Kodaikanal and one in ETHNOMUSICOLOGY from the School of Oriental and African Studies, University of LONDON.

Both of them have published books and written numerous articles relating to Music and religion