Kapur, with two birdies in his first three holes and another couple in last three, has a total of three-under 141 and is placed tied 48th.
Kapur teed off from the 10th with a birdie. He gained another shot on the 12th and then added two more on seventh and ninth.
He bogeyed the 18th, fifth and sixth in between.
South Africa's Brandon Stone proved why he is regarded as one of the promising young talents in world golf as the 20-year-old rocketed into the lead midway through his Challenge Tour debut at the Finnish Challenge, thanks to a six-under 66.
Stone claimed a top-10 finish in his debut on the European Tour as a pro at June's BMW International Open, and he is now in the driving seat for a maiden title in Finland.
He began the second day a shot off the lead and, in more difficult conditions at Kytaja Golf, in Hyvinkaa, he carded another bogey-free round to move to 13-under for the tournament.
