Let KAYAK do the searching
Based on KAYAK hotel searches, the most popular destination is Chennai (72% of total searches to Tamil Nadu). The next most popular destinations are Tiruchirappalli (11%) and Madurai (10%). Searches for hotels in Ooty (7%) are also popular.
KAYAK users have found double rooms in Tamil Nadu for as cheap as S$ 8 (Chennai) in the last 3 days. The average price is S$ 81.