Kapur's 70 took him to nine-under 201 for three rounds, even as South African Garth Mulroy (66) moved into a one-shot lead after a six under par 66.
Mulroy had seven birdies and only his second bogey of the week in moving to 17 under par at Royal Park I Roveri, but he has a trio of Spaniards hot on his heels.
Kapur had three birdies and one bogey in his round of 70 but he slipped to tied 47th after being tied 14th overnight.
Gonzalo Fernandez-Casta