The winner earns spots in the 2018 Masters Tournament and The 147th Open at Carnoustie. Both the Indian boys are four- over 217 for 54 holes.
Of the other two Indians who made the cut, Yashas Chandra (71) was tied 43rd and Yuvraj Sandhu (75) was tied 57.
China's Lin Yuxin birdied the 18th to shoot a two-under- par 69 and hold a one-stroke lead after the third round.
The trio will play together in the final group tomorrow.
Australia's Shae Wools-Cobb (71), the first-round leader, is five-under and one ahead of China's Yuan Yechun (69) and New Zealand's Kerry Mountcastle (70), a Royal Wellington member.
Japan's Keita Nakajima (70) and Lloyd Jefferson Go (71) of the Philippines are tied for seventh at three-under.