Boston, Aug 5 - Striker Rani Devi slammed a hat-trick to help India to a comprehensive 6-0 victory over Belarus in their Group D fixture at the junior women's hockey World Cup here wednesday.

With this win, India qualified for the medal league second round as the top team from the pool.

India scored through Roselin Dung Dung (16th), Poonam Rani (38th), Ritu Rani (51st) and Rani Devi (53rd, 54th and 58th min).

Both teams started cautiously, but as the first half progressed India took territorial supremacy pushing action in the Belarus end.

Dung Dung gave India the lead off skipper Ranjita Devi's set-up which was nailed past Belarus goalkeeper Veranika Mikanovich.

Belarus attempts for an equalilser were thwarted by an alert Indian defence and a penalty corner was aborted by goalie Jasdeep Kaur late in the first half.