sentences:  He has worked with Indian poets and lyricists such as Kannadasan, Vaali, Vairamuthu, O. N. V. Kurup, Sreekumaran Thampi, Veturi Sundararama Murthy, Aacharya Aatreya, Sirivennela Sitaramasastri, Chi.Udaya Shankar and Gulzar and is well known for his association with filmmakers such as Bharathiraja, S. P. Muthuraman, J. Mahendran, Balu Mahendra, K. Balachander, Mani Ratnam, Sathyan Anthikkad, Priyadarshan, Fazil, Vamsy, K. Vishwanath, Singeetam Srinivasa Rao, Bala, Shankar Nag, and R. Balki.Ilaiyaraaja is nicknamed "Isaignani" (the musical genius), a title conferred by Kalaignar Karunanidhi.