We are a French couple (60 and 65). We spent four weeks in Tamil Nadu in September 2015. We were in Puducherry, Gingee, Tiruvannamalai, Thanjavur, Tiruchirapalli, Erode, Dindigul and Chennai. We were sleeping in good hotels or guesthouses, no five stars except Taj Coromandel for the last night in Chennai. I give below my classification (my wife is more or less ok with me) except for the Taj which was more than perfect (when you pay a lot you ask the perfection). I let you search on Internet or in guidebook the adresses of some hotels.