Soumya of PSCB defeated the world youth title winner Vaishali of Tamil Nadu with black in a knight ending as she along with Swati lead the fray with 2.5 points apiece.
Pratyusha Bodda of Andhra Pradesh produced the upset of the day stunning top seed and defending champion Padmini Rout as the Odisha girl playing black went down in 48 moves.
Overnight leader Swati kept her position intact atop the table with a draw against K Priyanka of Tamil Nadu in a Scotch game.
