Train route confirmation

Hi,
As of now i have to travel from tambaram to villivakkam through train.I got a season ticket from tambaram to villivakkam.In the season ticket the route mentioned is via chennai beach to reach villivakkam.Since there is no frequency of train to villivakkam via beach,I would like to take train from Chennai central.Can i travel with the same season ticket or should i purchase a new one by mentioning the route to be travelled via chennai central?
regards,
ganesh