Source : Indian Defence Updates (IDU)

Indian Navy’s 5th Gen minus TEDBF to feature serpentine shaped ducts and diverterless supersonic inlet for better RCS
As per the latest media reports, the Indian Navy’s indigenous 5th generation minus Twin Engine Deck Based Fighter (TEDBF) fighter jet will feature serpentine-shaped ducts along with diverterless supersonic inlet, a feature that will be first seen on the AMCA 5th generation fighter jet.
The serpentine-shaped ducts do not provide a direct line of sight to the compressor blades thus hiding the engine from incoming radar waves which helps in lowering the frontal radar cross section (RCS) and infrared signature of the aircraft.
The TEDBF will also feature serrated patterns for the construction of the trailing edges of the Wings and canards for further reduction in frontal radar cross section and will use the same material developed for the AMCA program.