well its clear we can't encapsulate any missile but we have enough missile that can be encapsulated in Jask-2 and have higher range than Nasr-1
also no babur-3 don't use the same method we used in Jask-2 look at this video of the babur launch
thats the normal encapsulation of submarine launched missile and your missile will turn on under water and drive itself out , what you see as encapsulation is there to protect the missile from water and made it fit the torpedo tube . for that you need a special version of Babur , that's why I think you'll see Babur-3 as submarine launched missile and you use Babur-2 for other platforms and that's why Babur-3 have less range than Babur-2
this a video of how Jask-2 work
you see our system have the advantage that where the missile come out of water maybe kilometers away from where the submarine is and nobody can use it to determine the location of the submarine .