Much more important than seeker.Active seeker supplemented with IIR made in house as harba uses Dual guidance.. The initial purchase of C602 a.k.a Zarb missile from china helped Pakistan in perfecting the art of making active seekers. GIDS confirmed to me back in March 2022 exhibition that engine is indigenous too. Hence they are in position to export the missile.
Plenty of electronics/mechatronics and even some optronic grads available - metallurgical , aero engine grad’s finally getting an engine out the door is important.