What is "vilvanathan"

Vilvanathan (15 October 1928 – 26 June 2009) was an Indian architect, who played an important role in building houses etc., he was also called "Mastry". He spent most of his childhood running into financial problems and started working at an early age to supplement his family's income. Vilvanathan was brought up in a small village, called Tiravalam, Tamil Nadu Thiruvalam.