Rohan Bopanna [ Images ] and Aisam-ul Haq Qureshi are on course for their fifth ATP Challenger title in five months after a hard-fought 7-6(10), 7-6(4) victory over Benjamin Balleret and Sebastien de Chaunac in the semi-finals in Delhi [ Images ] on Thursday.

Seeded second in the tournament, the Indo-Pakistani duo had to dig deep and utilise the understanding developed from their four-year combination to come out trumps.

The opposition pair, from Monaco and France [ Images ], gave Bopanna and Qureshi a tough time and the Europeans could have won the tie-breaker in the first set but for some unforced errors.

The second set also was stretched to the tie-breaker though this time the Indo-Pak pair won it easier than in the earlier set.

In the title round, Bopanna and Qureshi will take on the top seeded South African pair of Wesley Moodie [ Images ] and Rik de Voest, who escaped with a 6-7(4), 6-4, 16-14 win over the Russian duo of Pavel Chekhov and Michail Elgin in a marathon semi-final.

On Friday, Bopanna and Qureshi will be playing their sixth ATP Challenger final in five months.

For Qureshi, it was double delight as he also scored an upset 6-2, 6-3 victory over top seed Ivo Minar of the Czech Republic in the singles quarter-finals.

In the last four round, the sixth seed will play eighth seed Adrain Cruciat of Romania, who also upset fourth seeded South African Rik De Voist 7-6(3), 6-1.

The other semi-final will be between Martin Slanar of Austria and Jae Sung An of Korea.