India have taken a 1-0 lead in the World Group Davis Cup Tennis tie at Jonesburg. India's number one Somdev Devvarman out classed Izak Der Merwe of South Africa 7-6, 6-3, 6-4 in the opening singles. The second singles will be played between Rohan Bopanna and Rik De Voist later this evening. South Africa has a recore of 2-0 victory over India in head to head clashes.