Kaur has shone bright with both bat and ball for the Melbourne Renegades, scoring 399 runs with three half-centuries.
Mandhana, who faced 64 balls, punished the bowlers with 14 fours and three sixes, equalling Australian batter Ashleigh Gardner's highest individual score in WBBL history.
Harmanpreet first took a couple of wickets with her off-spin before smashing an unbeaten 73 off 46 balls as her team Melbourne Renegades defeated Adelaide Strikers by six wickets in Perth.
Besides Mandhana, the WBBL also features Shafali Verma, Jemimah Rodrigues, Poonam Yadav, Radha Yadav, Richa Ghosh, Harmanpreet Kaur, and Deepti Sharma.
Chasing 100 runs to win in 11 overs in the rain-hit match, 17-year-old right-handed opener, Shafali Verma, fell for 8 (10 balls, 1 four) in the fourth over.
Hannah Darlington stands in for Rachael Haynes, who has decided to withdraw from the entire WBBL, post the birth of her son, Hugo. Darlington is the youngest captain in the competition's history.
The 30-year-old diminutive India wrist spinner joined the Brisbane side to fill the spot left by the withdrawal of New Zealand star Amelia Kerr.
Young Indian batter Jemimah Rodrigues will play for Melbourne Renegades in the upcoming Women's Big Bash League.
Shafali is expected to form a lethal combination with Alyssa Healy, Ellyse Perry and Ash Gardner at the top of the order for the Sixers, giving the team the most exciting top four in WBBL history.
Verma is expected to form a lethal combination with Alyssa Healy, Ellyse Perry and Ash Gardner at the top of the order for the Sixers, giving the team the most exciting top four in WBBL history.
Sydney Thunder coach Trevor Griffin said that his team's title defence had received an extra edge with Indian superstars Smriti Mandhana and Deepti Sharma signing on for the club's WBBL|07 campaign.
Lanning on Tuesday re-signed with Team Green for a second consecutive season after joining from cross-town rivals at the Renegades ahead of WBBL six.
Amelia Kerr, has pulled out from the upcoming season of the Women's Big Bash League to continue focusing on mental health.
Mignon du Preez has left Melbourne Stars for joining Hobart Hurricanes ahead of the seventh edition of the Women's Big Bash League.
At 23 years of age, Molineux has become the youngest Renegades player to be appointed as captain as she takes over the role from Amy Satterthwaite.