Emiliano Grillo opened up a commanding five-shot lead as he set the clubhouse target on day two of the Hero Indian Open.
The Argentinian equalled the course record with a 65 at DLF Golf and Country Club on Thursday and did not take his foot off the pedal in round two, moving to 11 under with a 68.
His two-shot overnight lead had been cut to one as the first round was completed but that was as close as anyone would get in the morning and the advantage was up to four shots at the turn.
The 25 year old led by seven when he made a birdie on the eighth but a second bogey of the week on his final hole gave the rest of the field some hope.
Afternoon starters Pablo Larrazábal and Matteo Manassero were his nearest challengers, both one under for their rounds after six and three holes respectively.
Swede Jens Dantorp, England's Matt Wallace and South African Keith Horne were then in the clubhouse at five under, a shot clear of Frenchman Sébastien Gros, Dutchman Joost Luiten, American Casey O'Toole, South Korean Jeunghun Wang and Scot Marc Warren.
Grillo is an invite this week having only played two European Tour events outside of the Majors and World Golf Championships since 2015 and is in search of his first title.
He birdied the 11th and 12th and when he took advantage of the par five 18th for the second day in a row, he had opened up a gap at the top.
A 20-foot putt on the second extended his lead further and another birdie came as he got to the side of the green on the par five eighth in two.
Sand off the tee led to a bogey on the ninth but Grillo was still well in control with those in the chasing pack jostling for position.
Wallace birdied the third and fourth before dropping a shot on the seventh but he bounced back with gains on the eighth and ninth.
A bogey on the tenth then dropped him into the group at five under before he parred his way home.
Horne had been the man to cut Grillo's lead as the first round was completed but he could not carry that momentum into his second circuit, carding a one over par 73.
Dantorp birdied the 18th, second and eighth with a bogey on the fourth.
Warren recovered from a double-bogey on the 11th - his second - to sign for a level-par 72, while Wang went one better with four birdies and three bogeys.
Gros also had four birdies and three bogeys, with Luiten recording single blemish after finding water on the eighth to go with birdies on the tenth, 11th, first and seventh.
O'Toole had a birdie-birdie finish to add to three other birdies and an eagle in a 66 that was the lowest round of the day so far.
American Paul Peterson was also at four under having dropped a shot in his first three holes.