Colleges starts with O
- 1529 - Oxford College of Engineering, Venmani Village, Karaipoondi Post, Polur Taluk, Thiruvannamalai Distr, THIRUVANNAMALAI
- 3813 - Oxford Engineering College, Pirattiyur(W), Tiruchirappalli District 620009, TRICHIRAPPALLI
- 3782 - OASYS Institute of Technology , Pulivalam Village, Musiri Taluk, Tiruchirappalli District 626001, TRICHIRAPPALLI