The Indian women's hockey team continued its unbeaten run and notched up an emphatic 3-1 win over New Zealand in the fourth Test to take an unassailable 2-0 lead in the five-match series in Wellington .India trailed 0-1 at half time but came back strongly after the break with three goals from skipper Surinder Kaur (43rd), Saba Anjum (64th minute) and Rani Rampal (69th minute).The lone Black Sticks goal came in the 21st minute when Piki Hamahona struck on a rebound. The fifth and final Test will be played in the same venue on Sunday.