Highlights: - Production of Hero Electric Optima begins at Mahindra & Mahindra's Pithampur-based manufacturing facility. Comes in multiple variants. Prices of the Optima electric scooter ranges between Rs 51,440 to Rs 67,440 (ex-showroom Delhi, including FAME II subsidy).  Hero Electric Optima becomes the first product to roll out from Mahindra's Pithampur plant…