The Bury player-boss has been impressed with the left-sided midfielder, who has yet to make a first-team appearance at Leeds, and he has featured in all but one of their 20 games this season.
He had a previous three-month loan spell at Gigg Lane two years ago.
A statement from Bury said: "Harpal put pen to paper on the contract a short while ago and will return to Elland Road at the end of the season."
He had a previous three-month loan spell at Gigg Lane two years ago.
A statement from Bury said: "Harpal put pen to paper on the contract a short while ago and will return to Elland Road at the end of the season."
