"We are here to create the ecosystem, to invest in the necessary infrastructure including the charging infrastructure," Isabel Fan, a regional director at Tesla, said at the launch event.

Tesla Inc. opened its first showroom in India on Tuesday, marking the electric vehicle maker’s long-anticipated debut in the world’s third-biggest automotive market.

The absence in India has hurt Tesla’s global sales, which are suffering the largest sales decline in the company’s history in the face of increased competition, and a backlash in some markets to CEO ...