The delay was due to delays in receiving the General Electric F404 engine that powers the jet. As the Indian news outlet Swarajya puts it, "The IAF had hoped to enhance its battle preparedness by ...

"This order strengthens our relationship with Poland and expands the Polish Armed Forces' GE Aerospace-powered fleet, which includes F404-powered FA-50 fighter jets, T700-powered Sikorsky S-70i ...