Tech OVN, one of the best Manufacturers of Meter & EV charger in India. OVN was founded by Mr. O.P. Raheja in 1949 in the field of Power and Water. With a rich history in Water Pumping stations and Diesel Generators, OVN is now expanding into Energy Meters and Electric Vehicle Components with collaborations from BYD (Worlds biggest EV manufacturer) and Indian Technology Partners.