A clinical India demolished a hapless Pakistan 7-1 to register their third consecutive victory and seal a place in the quarter-finals of the Hockey World League Semi-Final. File Pic/AFP

London: Penalty corner specialist Harmanpreet Singh and forwards Talwinder Singh and Akashdeep Singh scored a brace apiece as India flayed Pakistan 7-1 in a Pool B clash to storm into the quarter-finals of the Hockey World League (HWL) Semi Final here on Sunday.