Tata Motors conducts electric bus trial in Guwahati, India October 17, 2017 | Asia Pacific News Assam State Transport Corporation (ASTC) has commenced the trial run of the Ultra electric bus in Guwahati. Tata Motors has supplied the bus, which is 9 metres long and can accommodate 26 to 34 passen... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password