Chennai, July 30 - Two 17-year olds from Chennai, top seed and favourite Dipika Pallikal of India and compatriot Anwesha Reddy, seeded 16, entered the pre-quarterfinals of the girls singles of the junior World squash championship here Thursday.

Dipika was in imperious form while defeating New Zealand?s Lana Harrison in just 19 minutes to remain on course.

In her next match slated for this evening, Dipika takes on Yathreb Adel of Egypt who packed off No.18 Milou van der Heijden of the Netherlands.

In contrast, Answeha needed all of 42 minutes and four games to quell Carrie Ramsey of England. She will next meet second seed Heba El Torky who led six Egyptians into the fourth round with a commanding win against Catalina Pelaez of Colombia, the match lasting a mere 13 minutes.

Late last night, the Indian challenge in the boys? singles ended with the exit of Ramit Tandon, Ravi Dixit and Karan Malik.

Girls singles (third round): 1-Dipika Pallikal (IND) beat 17-Lana Harrison (NZL) 11-1 11-7 11-7 (19m); Yathreb Adel (EGY) beat 18-Milou van der Heijden (NED) 11-4 11-9 14-12 (26m); 10-Nessrine Ariffin (MAS) beat Ho Ka Po (HKG) 11-7 11-9 11-5 (20m); 5-Nouran El Torky (EGY) beat 20-Julianne Courtice (ENG) 9-11 11-3 11-5 11-5 (31m); 4-Nour El Tayeb (EGY) beat 21-Sarah Cardwell (AUS) 11-1 11-8 11-3 (25m); 11-Samantha Cornett (CAN) beat 22-Millie Tomlinson (ENG) 8-11 14-12 11-6 8-11 11-9 (49m); 13-Salma Hany (EGY) beat 23-Liu Tsz-Ling (HKG) 11-8 3-11 11-2 11-8 (28m); 7-Olivia Blatchford (USA) beat 24-Rachael Goh Mas (MAS) 11-8 11-4 11-7 (21m); 8-Maria Toor Pakay (PAK) beat Surbhi Misra (IND) 11-7 11-6 11-8 (24m); Elizabeth Eyre (USA) beat 12- Kimberley Hay (ENG) 3-11 13-11 11-6 11-7 (31m); 14-Kanzy Emad El-Defrawy (EGY) beat Amanda Landers-Murphy (NZL) 11-4 12-10 11-3 (25m); 28-Amanda Sobhy (USA) beat 3-Laura Gemmell (CAN) 13-11 11-9 9-11 11-6 (55m); 6-Low Wee Nee (MAS) beat Carmen Lee (HKG) 11-2 11-5 9-11 11-5 (35m); 15-Nour El Sherbini (EGY) beat Emma Millar (NZL) 11-5 11-1 11-3 (15m); 16-Anwesha Reddy (IND) beat 31-Carrie Ramsey (ENG) 11-6 11-8 8-11 11-4 (42m); 2-Heba El Torky (EGY) beat 32-Catalina Pelaez (COL) 11-9 11-7 11-4 (13m).