Aditi shared honours with two veterans from the Ladies European Tour -- 30-year-old Becky Brewerton of Wales and 42-year-old Stefania Croce of Italy at the DLF Golf and Country Club.
Aditi, who last year had missed the cut here, sunk in five birdies against just two bogeys.
Two other Indian challengers, Sharmila Nicollet and Nalini Singh Siwach had contrasting rounds but identical scores of one-over 73 each.
Sharmila, the best Indian last year at tied 22nd, had two birdies and an eagle against five bogeys.
"I gave myself a lot of birdie opportunities. I have a good short game and it went well today. My approach shots were also good today. I am happy to be there on top along with such experienced pros but I am not going to get ahead of myself. I know things can change very quickly," said Aditi.
She had one monster birdie putt from 45-50 feet on the 16th and her other birdies included two 15-footers on second and eighth. She birdied the 11th and 13th from six feet. A bad drive on the 10th, her starting hole and a mis-hit to the left on fifth cost her the two bogeys. More
