This document summarizes a study on paratransit systems in Chennai, India. It defines paratransit as flexible passenger transportation that does not follow fixed routes or schedules. In Chennai, paratransit serves areas with limited public transit access and provides first/last mile connectivity. Major paratransit modes include shared autos and taxis that collectively serve over 18 million passengers daily, more than Chennai's mass transit rail system. However, most paratransit vehicles operate without permission. The study suggests recognizing paratransit officially and integrating it with other transit to improve Chennai's transportation system.