India made a promising start by taking a first-half lead but its defence fell apart later as the team lost the fourth hockey Test 1-5 to Australia and conceded an unassailable 3-1 lead in the five-match series, here on Saturday.

Comeback man Dilpreet Singh (25th) struck early to give India the lead after a resolute defensive display by Harmanpreet and Co. in a goalless first quarter.