India's Ramkumar Ramanathan celebrates his win over Uzbekistan's Temur Ismailov in the first singles rubber of the Asia/Oceania Davis Cup tie at KSLTA Stadium in Bangalore yesterday. pic/pti

Bangalore: Ramkumar Ramanathan had several obstacles to overcome at the KSLTA Stadium yesterday. Energy sapping heat, an opponent who hit the right gears several times, his own serve -- an ally and a point of concern at the same time. But the World No. 267 found a way to surmount each of those hurdles en route his 6-2, 5-7, 6-2, 7-5 win over Uzbekistan's Temur Ismailov in the first singles rubber of the Asia/Oceania Davis Cup tie to give India a 1-0 lead.