Kwanchai Tannin's 68 saw him set the early clubhouse mark at the Avantha Masters but Barry Lane and Andrew Dodt were both well placed to overhaul the Thai golfer after enjoying profitable starts to the second round.
Tannin birdied his opening hole at DLF Golf and Country Club – the tenth – and picked up another at the 17th before carding three more over the front nine against a solitary bogey at the fifth to move to eight under at the halfway mark with a second consecutive four under par effort.
But he trailed Dodt by two shots with the Australian five under for the day through 12 holes to head the leaderboard on ten under par. Veteran Englishman Lane was a stroke further back on nine under, also through 12.
After parring his opening two holes, Dodt birdied four of the next seven to reach the turn in 32 and although a dropped shot at the tenth checked his progress, he quickly bounced back picking up consecutive strokes at the 11th and 12th.
Lane, who opened with a 67, made steady progress with three birdies over his opening nine holes before another at the first saw him keep up the pressure on Dodt.
Overnight leader Marcel Siem, who fired a blistering opening 64, was among those yet to start their second rounds while Indian Rahil Gangjee had climbed to seven under after collecting two shots in his opening seven holes.