Belongs to the Pazhani school, he has been performing for more than 6 decades now.
Here's an excerpt from a Wiki writeup on this vidwan: http://en.wikipedia.org/wiki/Guruvayur_Dorai
Here's a marvelous video clip of him performing with Sukhvinder Singh Namdari:1949 was a watershed in Dorai's career, as he came to Chennai for the first time to perform with Chembai in a concert. Meanwhile, Ponnammal got a chance to sing in a Malayalam film. As the opportunities were more copious in Chennai, their father decided to settle there. Dorai, Ponnammal, Rajamani and the father stayed in a rented house in the city while the rest of the family remained in Guruvayur. In the same year, he also happened to meet the legendary mridangam artist Palani Subramaniam Pillai in Thirupoontharai. After Palani Subramaniam Pillai moved to Madras in 1953, Dorai commenced classes with the maestro. This helped him understand and absorb the complexities of the Pudukottai style of mridangam. Dorai stayed with Palani Subramaniam Pillai in his residence for nearly nine years in the gurukulavasam fashion.
http://www.youtube.com/watch?v=1utk7QEAz5c
