Prakash Amritraj [ Images ] and Rohan Bopanna [ Images ] crashed out in both singles and doubles section of the US$ 25,000 PVG Cup Dharwad Open ATP Challenger tennis tournament on Thursday.

However, Karan Rastogi [ Images ] and Ashutosh Singh kept the Indian hopes alive as they reached the last four in doubles, with a 6-4, 3-6, 10-6 win over Henry Adjei-Darko (Ghana) and Nathan Thompson (US).

Phillip King (US), a qualifier, came from behind to defeat Amritraj 6-7 (2-7), 6-1, 6-1 and book a quarter-final berth.

Amritraj struggled from the beginning but managed to win the first set. However, he lost his rhythm midway and surrendered meekly.

Victor Troicki of Serbia scored a convincing 6-1, 7-5 win against Bopanna.

In doubles, the Slovakian pair of Kamil Capkovic and Lukas Lacko overpowered Amritraj and Bopanna with a 4-6, 6-4, 10-8 scoreline to move into the semi-finals.

Meanwhile, Japan's [ Images ] Go Soeda toiled for more than three hours in the scorching heat to overcome Darko 6-7 (11-13), 6-4, 7-6 (10-8) to advance to the quarter-finals, where he was joined by top-seeded Hyung-Taik Lee (Korea), Lukasz Kubot [ Images ] (Poland), Denis Istomin (Uzbekistan) and Yen-Hsun Lu (Taipei).