India took a winning 3-1 lead against Japan in the Asia Oceania Group I Davis Cup tie with Rohan Bopanna defeating Jun Kato in the first reverse singles in New Delhi on Sunday.
Bopanna, who had been beaten in the opening singles, defeated Kato 7-6 (7/5), 6-4, 6-4 in one hour and 54 minutes.
Leander Paes will take on Gouchi Motomura in the inconsequential last match.
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