Aditi, who shot two-under 70 on first day, is now six- under and moved up from Tied-58th to Tied-24th with six more holes to go.
Playing alongside one of the legends of the game, Karrie Webb, who won her first Major, the Women's British Open in 1995, long before Aditi was born, the Indian 19-year-old held her own as she started from the 10th.
She ran up four straight birdies from 12th to the 15th and added another on 17th. A dropped shot on first, one her second nine, saw her at four-under for the day and six-under for the tournament.
Australia's Katherine Kirk leads the field at -13 after the morning wave of players with an impressive round of eight-under 63. The veteran of 13 years on LPGA, Kirk is seeking her third career LPGA title.
Three birdies and a bogey on the front nine turned out to be just a foothold for an even more impressive back nine. Kirk picked up a further five birdies and an eagle to get around the second nine in just 29 strokes and finish 36 holes at 13, three shots ahead of her current nearest competitors.