India Women secured a 30-run victory over Sri Lanka in the fourth T20I, taking a 4-0 lead in the five-match series. Smriti Mandhana (80) and Shafali Verma (79) established a record 162-run opening partnership, propelling India to their highest T20I total of 221/2. Sri Lanka's chase, led by Chamari Athapaththu (52) and Hasini Perera (33), reached 191/6, with Vaishnavi Sharma taking two wickets for India. The win was India's fourth consecutive in the series.