At four-over 220 for 54 holes, Aditi, whose personal best on LET is T-8 as an amateur at Hero Indian Open in 2012, was tied 31st.
Starting from the 10th, Aditi got off on the wrong foot with a bogey on 11th, but back-to-back birdies on the two par-4s on 14th and 15th steadied her on a cloudy and blustery day at the Shanghai Qizhong Garden Golf Club.
A bogey on Par-5 17th saw her turn in even par, and a birdie on second put her in red figures again. Then came a troubled stretch where she dropped bogeys on third, fifth and seventh. However, a birdie on closing ninth gave her something to look forward to tomorrow.
Aditi was happy with her performance considering she played here without a practise round.
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"I am happy with my performance so far given the fact that my golf bag arrived only on the night before the first round of the championship. So I started the tournament without a practice round. Having said that, I think I have played well. The conditions have been rather very windy for last two rounds - second and third - and today in third I did well and made 4 birdies. I will do my best and keep creating chances and minimise my mistakes to have a better finish."
Just two strokes behind Feng and Choi is the American Beth Allen in third place. Allen made an excellent birdie putt from 25 feet on 15 before adding another on 17 to keep pace.
Meanwhile, Florentyna Parker, runner-up at the Lalla Meryem Cup last week in Morocco, is only three shots from the lead in fourth place. She is a stroke ahead of fellow Englishwoman Georgia Hall (71), who shares fifth spot with China's Wei Wei Zhang on five-under-par.