The launch pad was provided by Mandhana for the middle-order to go big and that is what the likes of Harmanpreet Kaur (34 off 23), Harleen Deol (44 off 50), Richa Ghosh (26 off 12) and Jemimah Rodrigues (31 off 19) did to take India past 300.
After dropping hard-hitting Shafali Verma, India have tried multiple batters to open alonside Mandhana and on Sunday it was the turn of Delhi cricketer Pratika, who batted at a strike rate of 57.97.
The 24-year-old was also dropped at mid-off when she was batting on three in the 10th over. Her four boundaries came on the leg-side as she employed the sweep multiple times.
Mandhana, at the other end, entertained the crowd with her trademark shots including a cover drive and pull.
India changed gears after the arrival of fit-again skipper Harmanpreet who struck at close to 150 to give the innings a timely move on. The momentum was carried by Richa and Rodrigues who has been in top form of late. For the West Indies, the pick of the bowlers was left-arm spinner Zaida James who took five wickets for 45 runs in eight overs.
India could have got a lot more in the death overs but the last three overs only yielded 20 runs with James picking three wickets in the final over.