BEST signs LoI with TUMI E-Bus Mission to deploy electric buses in Mumbai, India October 5, 2021 | Asia Pacific News Brihanmumbai Electric Supply and Transport (BEST) Undertaking, the bus operator in Mumbai, and Transformative Urban Mobility Initiative (TUMI) E-Bus Mission have signed a letter of intent (LoI) for th... This content is available to only subscribers. Username or E-mail Password Remember Me Forgot Password