In what year was the well known Indian athlete whom O. M. Nambiar coached born?
P. T. Usha Pilavullakandi Thekkeparambil Usha (born 27 June 1964), popularly known as P. T. Usha, is a retired Indian track and field athlete. She has been associated with Indian athletics since 1979. She is often called the "queen of Indian track and field". She is nicknamed as the Payyoli Express. Currently she runs the Usha School of Athletics at Koyilandy in Kerala.
Joseph Abraham Joseph Ganapathiplackal Abraham (born 11 September 1981) is an Indian track and field athlete from Kerala. He holds the current 400 metre hurdles national record of 49.51 seconds set during the 2007 World Championships in Athletics in Osaka on 26 August 2007. At Osaka, Abraham became the first Indian male athlete to clear the opening round of an event in the World Athletics Championships when he reached the 400m hurdles semifinals. He also won the 400m hurdles gold medal at 2010 Guangzhou Asian Games.