The 24-year-old Anand erased a one-set deficit to knock the former champion 5-7 6-4 6-2 wins in humid conditions at DLTA Complex.
He now runs into top seed and favourite Vishnu Vardhan, who dumped Dalwinder Singh 6-2 6-4.
Haadin Bava also entered the men's singles semi-finals by defeating Jayesh Pungaliya 7-5, 6-2. Haadin next faces Siddharth Vishwkarma, who ended the impressive run of Tejas Chaukulkar 7-5 6-4.
In the women's matches, top seed Riya Bhatia fought her way past Nidhi Chilumula 6-7 (7) 6-3 6-2.
In under-18 boys event, D Suresh toppled BR Nikshep 6-2 6-3 while second seed Dhruv Sunish and Nitin Sinha stayed on course.
In the girls Under 18, second seed Humera Shaikh batlled past Yamalapalli Sahaj 7-6 4-6 7-5.
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