BENGALURU A Sunil Chhetri hat-trick helped India to an easy 4-0 victory over Pakistan in its SAFF Championship opener at a rain-soaked Sree Kanteerava Stadium here on Wednesday. CATCH THE HIGHLIGHTS HERE: IND 4-0 PAK, SAFF Championship In the first half, Pakistan looked every bit the team that had arrived on the day of the match and without sufficient practise. …