India boosted their Women's T20 World Cup semi-final hopes with an 82-run win over Sri Lanka, driven by half-centuries from Harmanpreet Kaur and Smriti Mandhana. India set a high score of 172-3, while Sri Lanka fell for 90, eliminating their semi-final chances. India’s bowlers Arundhati Reddy and Asha Sobhana took three wickets each.