Aditi, who won the Fatima Bint Mubarak Golf in Abu Dhabi earlier this year, had three birdies against one bogey in the round and is placed T-29th.
Meanwhile, Thai Supamas Sangchan rode on her short game as she fired a bogey-free five-under-par 67 to seize the early lead.
Starting from the 10th tee, the 21-year-old Bangkok native came to life on the front nine after making the turn at one-under. She reeled off four birdies in six holes to leave a strong field trailing in her wake.
Dame Laura Davies mixed five birdies with two bogeys to move into a seven-way tie for seventh on three-under as the 2009 Dubai Ladies Classic champion In-Kyung Kim settled for a one-over 73 on a day when 45 players broke par.
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Aditi, who was the rookie of the year in 2016 but played a lot on the LPGA in 2017, opened with a bogey. She got back that shot with a birdie on third but dropped another shot on seventh.
Aditi managed to convert only two of the four par-5s into birdies and an improvement on that alone will help her make a good upward move.
American Brittany Lincicome, making her debut in Dubai, carded a one-under 71 to sit six shots off the pace along with Aditi and China's Muni He, who has just turned professional.