In February, Pratt & Whitney (P&W), which has supplied its Geared Turbo Fan (GTF) engines in large numbers to IndiGo and GoAir for their Airbus... ...
https://economictimes.indiatimes.com/industry/transportation/airlines-/-aviation/high-gst-rate-on-aircraft-engine-components-forcing-pw-to-go-abroad-for-engine-maintenance/articleshow/79533877.cms