India yet again defeated Canada 2-0 in the fourth men's hockey test and took an unassailable lead 3-0 in the seven-match series at Tamanawis Par in Canada today.While Vikram Pillay sounded the board by a penalty stroke in the 22nd minute, Rajpal Singh struck home at the 38th minute to script the victory for India.The visitors had won the first two matches and drew 4-4 the third Test match against Canada. The fifth Test will be played tomorrow.