The solitary goal win was good enough for them to stay atop Pool A.
Premjit Singh struck the game's only goal in the 46th minute.
MSP Higher Secondary School from Mallapuram, Kerala, thumped Tamil Nadu's Rani Seethai Aachi Higher Secondary School from Cuddalore 15-1. Shahajas struck three times while Rahul KD, Davang Ashok, Arjun and Jifty scored a brace each for the winners.
With the team from Chandigarh GM High School not turning up, Gujarat's St Xavier's High School got a walkover.
Meanwhile, the morning encounters saw Sports Authority of India, Salt Lake, beating Government Bazaar High School, Mizoram, 2-1, Assam's Betkuchi High School humiliating Father Agnel Multipurpose School and Junior College, Maharashtra, 11-1 in pool C. For SAI, Nirmal and Fakira scored while Silvana Lal reduced the margin for the Mizo school towards the close.