With the series already in their kitty, Indian women continued their dominance over the West Indies women by registering a five-run win in the rain-truncated fourth T20I in Providence (Guyana).
The visitors now lead 4-0 in the five-match series sealing the series in the third game.
The rain gods playing spoilsport forced the match to be reduced to a nine-over-a-side affair in which India women made 50 for seven after the Windies women chose to bowl first.
Being put to bat and fight a damp outfield, Pooja Vastrakar (10) became the lone Indian to reach a double-digit score.
Hayley Mathews (3/13) scalped three wickets for the hosts, while Afy Fletcher (2/2) and Sheneta Grimmond (2/10) picked up two wickets apiece.
The Indians then bowled and fielded with the discipline to restrict the West Indies women to 45 for five in their nine overs.
India skipper Harmanpreet Kaur completely relied on her spinners and they did not disappoint her as off-spinner Anuja Patil (2/8), Deepti Sharma (1/8) and Radha Yadav (1/8) kept the Windies on a tight leash throughout to ensure the win.
Mathews (11) and Chinelle Henry (11) top-scored for the home team.
The fifth and final T20 of the series will be played here on Thursday (November 21). India women had defeated West Indies women 2-1 in the three-match ODI series that preceded the T20s.
India Women: 50 for 9 from 9 overs (Pooja Vastrakar 10; Hayley Mathews 3/13).
West Indies Women: 45 for 5 from 9 overs (Hayley Mathews 11, Chinelle Henry 11; Anuja Patil 2/8).