A gas turbine power plant with flue gas recirculation comprising a compressor and a compressor blading configured thereon and an intake arrangement, said intake arrangement comprising: a manifold having first and distal second end portions (112, 114), the second end portion being proximate to the compressor, the manifold having at least one barrier configured to divide the manifold into at least two sections (118, 120) extending from the first to the second end portion, to convey, from the at least one section, a flue gas stream, and, from the at least other section, an air stream, entering from the first end portion; and a converging section configured along the second end portion of the manifold and extending convergingly to the compressor and defining an inlet to the compressor blading, the converging section having inner and outer ring members (132, 134) disposed coaxially to each other, wherein between the inner and outer ring members (132, 134) there extends, coaxially and convergingly, the at least one barrier to at least up to a distance in the converging section, defining a converging nozzle therebetween, wherein the converging nozzle comprises a mixing feature, wherein the mixing feature is adapted to provide and enhance turbulence in the flue gas and air streams upon deployment therefrom, creating a region of high vorticity in the converging section to promote mixing of the flue gas and air streams to convey a mixed composition of the flue gas and air streams to the compressor blading, improving the compressor operating range; the gas turbine power plant being characterized by the fact that the mixing feature comprises: a combination of alternating and adjoining troughs and ridges, respectively, bent in and bent out from a plain of the converging nozzle or a combination of alternating and adjoining peaks and depths configured along a plain of the converging nozzle. a manifold having first and distal second end portions (112, 114), the second end portion being proximate to the compressor, the manifold having at least one barrier configured to divide the manifold into at least two sections (118, 120) extending from the first to the second end portion, to convey, from the at least one section, a flue gas stream, and, from the at least other section, an air stream, entering from the first end portion; and a converging section configured along the second end portion of the manifold and extending convergingly to the compressor and defining an inlet to the compressor blading, the converging section having inner and outer ring members (132, 134) disposed coaxially to each other, wherein between the inner and outer ring members (132, 134) there extends, coaxially and convergingly, the at least one barrier to at least up to a distance in the converging section, defining a converging nozzle therebetween, wherein the converging nozzle comprises a mixing feature, wherein the mixing feature is adapted to provide and enhance turbulence in the flue gas and air streams upon deployment therefrom, creating a region of high vorticity in the converging section to promote mixing of the flue gas and air streams to convey a mixed composition of the flue gas and air streams to the compressor blading, improving the compressor operating range; the gas turbine power plant being characterized by the fact that the mixing feature comprises: a combination of alternating and adjoining troughs and ridges, respectively, bent in and bent out from a plain of the converging nozzle or a combination of alternating and adjoining peaks and depths configured along a plain of the converging nozzle.