O (Puducherry) Oulgaret (Puducherry) Ottampālaiyam (Puducherry) Odaveli (Nagapattinam) Olaiyāmputtūr (Nagapattinam) Odavandāngudi (Cuddalore) Odaiyūr (Cuddalore) Orattūr (Cuddalore) Odaiyūr (Cuddalore) Odākkanallūr (Cuddalore) Oddarpālaiyam (Cuddalore) Oblānjimedu (Villupuram) Otterippālaiyam (Cuddalore) Oraiyūr (Villupuram) Orukodi (Villupuram) Olukkai (Villupuram) Orattūr (Villupuram) Oddanandal (Ariyalur) Ottakkovil (Ariyalur) Orattūr (Ariyalur) Ottakkovil (Villupuram) Oddankāduvetti (Dindigul) Odaikkarisalpatti (Dindigul) Odaippatti (Dindigul) Odaippatti (Dindigul) Ottaikkālanpatti (Dindigul) Ondivādanāyakkanpatti (Perambalur) Olaippādi (Perambalur) Ogalūr (Dindigul) Ottanāgampatti (Dindigul) Ottanāgampattipudūr 4 5 6 7 8