The move signals Tesla’s renewed push to build its India presence and revive electric vehicle sales amid sluggish demand   Tesla Inc. has appointed Sharad Agarwal, former head of Lamborghini India, as its new country head — a strategic step to strengthen the company’s footing in the Indian market after a slow start. Agarwal will oversee Tesla’s local operations and lead the development of a long-term India strategy, according to people familiar with the matter. His appointmen