Veteran Tamil director and script writer Vietnam Veedu Sundaram has passed away at the age of 73 following a brief span of illness. 'Vietnam Veedu' became part of his name after he wrote the script for the film 'Vietnam Veedu', starring actor Sivaji Ganesan in the 1970s. Sundaram is also known for directing films including 'Gauravam', 'Gnana Paravai' and 'Payanam'.