Karthika Mathew is a popular South indian actress known for her role in 2004 blockbuster Vellinakshatram.Her real name is Lidiya Jacob and changed her name for Malayalam movies. She started her career as a model and appeared in many ads. After struggling career in the Malayalam industry, she moved to Tamil film Industry and got success with films like Naam Nadu and Dindigul Sarathy in which she played the lead roles.