Ashita defeated West Bengal's Tanaya Parakh in straight games, 11-6 11-6 11-5 while Aaradhana rallied to beat Abhilasha Bhasin of Maharashtra 6-11, 11-7, 11-5, 11-7.
Ashita will next meet 5/8 seed Sparshi Mattas of Goa who upset 3/4 seed Mira Kamat of Maharashtra 11-9, 11-4, 11-8 in a tight match.
Aaradhana will face 5/8 seed Radhika Rathore of Madhya Pradesh who halted unseeded Ira Gosavi of Maharashtra 11-4 11-5 11-1 in other quarter finals.
Top seed Jannia Singh of Chandigarh fought her way to a 11-6, 11-7, 14-16, 9-11, 11-4 win over 5/8 seed Avani Nagar of Maharashtra, in another gripping contest.