They are called Slam RAAMS
You need to actually purchase the supporting technology on ground to be able to shoot from teh ground which Pakistani do not have right now.
Also , our ANZA missiles are heat seekers , or IR signal seekers (correct me if I am wrong here) but these are derrivitives of Stinger Missile technology , once shot it goes and finds any plane in airspace locks and kills it -
BVR , are linked with Radars, and they also have ability to adjust the trajectory , and flight path more advance missiles
The reason why Pakistan has not been able to develop SAMS is simple - lack of Research and investment in that sector only nothing more - takes 4-7 years to develop a nice system , with investment of 200-300 million dollars at least...or more of course. And you need some solid output from university`s research departments
Also you need to have Super computers available which allow you to simulate testing and do quick tests on changing constants -
We don`t have super computers, and we don`t have investment in SAM technology and also we lack ambition in that sector if we get the SAM (any SAM) in next 3 years it would be a blessing
With hand held heat or IR signal missiles I believe your own planes are also in danger of accidentally being shot down with your own missiles , in case the missile incorrectly locks on your own plane.
In order to develop the SAMS you need
a) Genius Mathmaticians
b) Genius Programmers
c) Genius Electronics Engineers
d) Genius Physist
Also you got to have you own Radars, which end up processing all the data that is there
Plus you need super computers to run simulations , and calculations of flight path of missile.
Obviously having a TOT in radar manufacturing helps you 20% into being able to work with creation of a SAM but the real test is getting all the different fields of experts to work together to create one product.
I think if Pakistan has a Private Sector company - I am sure they can do it
The government can`t be expected to do this they do not have the knowledge for this kind of high tech gear they even locked up their own Nuclear scientist