St. Thomas School has got an exquisite infrastructure which includes the separate kindergarten sections,primary and senior and the senior wings,sprawling playgrounds(basketball court,badminton court and volleyball fields),swing area ,canteen,well -equipped labs(SSt lab,maths lab,science practical labs,three computer lab),library to inculcate good reading habits,music rooms,audio visual room and medical room. The campus is spread over an area of 3 acres and has 75 spacious classroom, and separate blocks for various disciplines.The sprawling play fields are a treat to the eyes of any visitor to the school.The school also provides e-learning through educomp smart classes ,PS system and CCTVs.