The Indians struggled with the combinations of Collier and Uerata's medium pace and Fraser's spin to have the side all out for 97 in the 32nd over.
Central's win means the side can lock the Grantleys Liquor Merchants Cup in their trophy along side their Twenty 20 trophy for the season. The cup which is like the Ranfurly Shield is only put up during the preliminary rounds.
Their win also gave the side the top position in the series despite the Taupo Wanderers having the equal amount of competition points.
Wanderers hosted Geyser City at Owen Delany Park at the weekend. Batting first, the visitors posted 161/8 in their allocated overs. Geyser's Dave Muir was the best of the batsmen with 23 not out. The Wanderers bowling attack was lead by Sage Davey who picked up 3/19.
The home side ran down the total in the 32nd over for the loss of four wickets. P Thornton was the top scorer for the Wanderers with 35.
Central gain the top position after a better net rate of 24.32 compared to the Wanderers 20.12. The results means a repeat of the weekend's matches with Central taking on the Indians at Boord Park and the Wanderers hosting Geyser at Owen Delany Park.
The winners of both matches will play the final on March 23.
Points and net rate table;
Central 24, 24.32; Taupo Wanderers 24, 20.12; Geyser City 18, 22.45; Bay of Plenty Indians 0, 18.73.