Line 1 of the Mumbai Monorail is, as of 2018, the only current line in the monorail system for the city of Mumbai, India. It is also referred to as Jacob Circle-Wadala-Chembur line/corridor. Built at a cost of approximately ₹3,000 crore (US$380 million), the 20.21 kilometres (12.56 mi) line is fully elevated, and connects Jacob Circle in South Mumbai with Chembur in eastern Mumbai. Scomi Engineering built the line with local partner Larsen & Toubro; Scomi operates Line 1 on behalf of the Mumbai Metropolitan Region Development Authority (MMRDA).