Visit the Sri Meenakshi Temple which is an ancient Hindu temple dedicated to Goddess Parvati and Lord Shiva. The temple has intricate carvings and colourful mandapams (pillars) that showcase Dravidian architecture. You can also witness the daily rituals that take place. In the evening, attend the Aarti ceremony where priests offer prayers to the idols.
Explore the Thirumalai Nayakkar Palace, a 17th-century palace that showcases the blend of Dravidian and Islamic architectural styles. The palace has a grand courtyard, decorated arches and pillars and a beautiful dance hall. In the evening, attend the light and sound show that portrays the history of the palace.
If you have more time, you can visit the Gandhi Memorial Museum which is dedicated to Mahatma Gandhi and showcases his life and work. Another place to visit is the Samanar Hills which has rock-cut caves and Jain sculptures. If you have less time, you can skip the light and sound show at the Thirumalai Nayakkar Palace.