Mumbai's Brihanmumbai Electric Supply and Transport (BEST) fleet is expected to get 525 AC electric buses by December this year. These will be part of a deal signed with Olectra Greentech Limited, a Hyderabad-based electric vehicle company, to deliver 2,100 electric buses over a period of 12 months. Notably, BEST is planning to have almost 100% electric fleet by 2027.