Top seed Sameer, who won the Swiss Open earlier this year, had to dig deep into his reservoir to outwit compatriot Pratul Joshi 16-21, 26-24, 21-7 in 55 minutes. In another quarter-final, Gurusaidutt, a former Commonwealth Games bronze medallist, recovered from a game down to beat Malaysia's Lim Chi Wing 13-21, 22-20, 21-11 in 59 minutes.
