O (Sivaganga) Odaikkulam (Sivaganga) Oiyavandān (Sivaganga) Oiyavandan Pudukudi (Sivaganga) Orupokki (Sivaganga) Ottanattam (Sivaganga) Ogampatti (Rāmanāthapuram) Ochchatevankottai (Rāmanāthapuram) Ottavīdu (Rāmanāthapuram) Ottavīdu (Rāmanāthapuram) Olugupuli (Virudhunagar) Ottaippuli (Rāmanāthapuram) Ottakkudi (Virudhunagar) Ottankulam (Virudhunagar) Oddankulam (Virudhunagar) Ottakkulam (Virudhunagar) Olaikudi (Virudhunagar) Oruchiranganpattiyūr (Sivaganga) Ottaividu (Sivaganga) Odattūr (Sivaganga) Ottakulam (Sivaganga) Okkuppatti (Madurai) Ottapatti (Thoothukkudi) Olaipatti (Virudhunagar) Odaikulam (Virudhunagar) Ovarkulam (Madurai) Ottai Ālangulam (Madurai) Ovalūr (Madurai) Ottappatti (Madurai) Ottakkadai (Pudukkottai) Onāngudi 6 7 8 9 10