Although there are zero reported cases of COVID-19 in Tamil Nadu but in the neighbouring states like Karnataka & Kerala number of cases are increasing. It is best to stay indoors and minimize any risk of getting infected.
The government requests travelers to postpone their travel for a few days, given the state of COVID-19 in India.The Indian Government has advised all travelers to avoid traveling to other states and avoid going to large public gathering places.
Please do not travel anywhere right now. I know there aren't any cases but I bet u can't enjoy. you will always be thinking about being safe and God forbid if at all even u sneeze or cough you will feel like you are infected from virus. and more over tourist places are being shut by govt only.
My advice is stay at home at present. The COVID-19 is rapidly spreading in few regions (In India). The Govt. of India has advised all travelers to avoid traveling to other states. Few State Govts. has declared holidays for the educational institute, commercial malls, Theaters and parks.