Saketh Myneni and Ramkumar Ramanathan endured challenging conditions to wear down their spirited rivals as India took a comfortable 2-0 lead on the opening day of the Asia|Oceania group I Davis Cup tie against South Korea in Chandigarh today.It seemed bizarre but both Ramkumar and Myneni saw their opponents conceding when the Indians were serving for their respective matches.The 21-year-old Ramkumar, ranked 217, put the hosts ahead in his Davis Cup debut when Seong Chan Hong conceded the first singles due to cramps in his right thigh as the Indian was serving for the match. Ramkumar was leading 6-3, 2-6, 6-3, 6-5.The onus to bring Korea back was on the most experienced player of the side, Yong-Kyu Lim, but Myneni dashed their hopes with a 6-1, 3-6, 6-4, 3-6, 5-2 win to set India up nicely.Lim conceded the match when Myneni was 15-15 and serving for the match in the eighth game. Rohan Bopanna and Leander Paes will look to wrap up the tie when they face Hong Chung and Yunseong Chung tomorrow.