Harmanpreet Kaur-led Supernovas succumbed to a five-wicket defeat to Velocity in their opening match, while Trailblazers had it easy, with their bowlers starring in a low-score one-sided affair against Mithali Raj and Co.
In reply, Deepti Sharma (43 not out) and Harleen Deol (27 off 15 balls) took the chase deep but Trailblazers could only manage 144 for 5 in the end, courtesy a superb last over by left-arm spinner Radha Yadav (2/30).
The win helped the Supernovas seal a place in Monday's final where they face Trailblazers once again.
Openers Priya Punia and Chamari Atapattu gave a flawless start for the team as duo forged 89 runs for the first wicket partnerships.
Rajeshwari Gayakwad joined the wicket-taking party in the ninth over as she struck on back-to-back deliveries, dismissing Sune Luus, who had scored a match-winning 37* against Supernovas, and Sushree Dibyadarshini. Velocity are the team to miss out.
It was Supernovas who won the toss and elected to bat first in the third match of the competition.
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While Punia was dimissed for 37-ball 30 on a Salma Khatun delivery, Atapattu notched up a crucial half-century before eventually departing for 48-ball 67 runs on a Harleen Deol delivery.
"We will work in our practice session and we will try to avoid all the silly mistakes, which we made today, in the next game", Deepti said during the post-match press conference.
While Shikha Pandey hit a couple of fours, she was run-out in the 12th over.
Mandhana (33) had opened with Dottin but was struggling for fluency and soon after finally getting a big shot over the ropes, she chipped a simple catch back to Anuja Patil (1-18) and when Dayalan Hemalatha was caught behind off Radha two overs later, the Trailblazers needed more than 11 an over. After this Richa Ghosh was out after scoring four runs.
Later in the fourth over, the Sri Lankan nonchalantly hoisted one over mid-off for a six and then swept Deepti for a boundary as Supernovas amassed 15 runs.
Supernovas medium-pacer Shakera Selman, who took two wickets - including that of fellow West Indian Deandra Dottin - said it felt good to reach the final after losing the tournament opener.