Specialized in the sports, he as 35 years of teaching experience. He has served the following college/Institute in the various capacities: Holy Saint Educational Institution Bangalore, Sharadha Vidhya Niketan Bangalore and Deeksha Integrated PU College He wants his students to grow in higher level (State & National Level) in all the Sports activities. He had in his old students International Cricket Player Anil Kumble, International Athlete Bindu Rani, International High Jumber Sahana Kumari, Mahantesh and many other national players in the various games. Rangaswamy himself is the International Athletic Referee and Cricket level one Coach from NCA. He has achieved lifetime achievement awardee, Kempegowda Awardee, Pandith Deena Dayal Awardee and KPMG Best Teachers Award in various games and also he is the National Team Coach and Managers. In the year 2021-2022 he joined City Engineering College and CEC represents various games in VTU. In 2023-2024 City Engineering College got overall championship in Karate. He wants his students to read autobiography of great people and gets motivated to become ACHIEVERS in life. Now this is the time to change for better and he believes in positive thinking, Hardworking and beliefs in oneself. He also believes that gratitude is the Best Attitude. At present he is continuing as Physical Education Director in Sports Department in City Engineering College