Kanchipuram Temples, Mangrove Forest, Arcot, Vellore, Kotagiri are some good options. Try some of the group trips organized by Keyterns: http://keyterns.com/
Hi, You can visit below places :
Coorg
Puducherry
Nanda Hills
Kerala If you want an international trip then you can choose SRI LANKA Happy Travelling! Thanks,
Yasmin