I think, it has K-Next engine, which is a bit refined K10B engine. Here is what Wiki says:
Suzuki K-Next engine — 998 cc (60.9 cu in) DOHC 12-valve, Refined K10B engine, further increased compression from 10.0 to 11.0 & reduced frictional losses, Increased petrol mileage over 23 KMPL.
2014 – present Suzuki Celerio / 2017 – present Suzuki Cultus in Pakistan.
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