It may be the previous govt.'s (congress) fault that army doesn't have the necessary equipment, or it may be that the army is all hype and no show (and add to that a lot of corruption in the army, especially air force). Whatever the reason, it's not capable at this point, or else a strong-willed leader like Modi would have taken back PoK by now.
Modi has a near impossible task of cleaning the system.
The political system per say is cleansed when drive out the Italian powered Congress aka left and so on.
You can never stop corruption it is a part of life unfortunately and is present in almost all countries so just live with it.However when it comes to our armed forces the bureaucratic system is so tightly integrated that it is just unimaginable for anyone (including Modi) to overhaul.All that will happen is that you will tie yourself in more and more red tape. Of course if congress has contributed anything more than corruption it is this bureaucratic system.
For instance Chidrambaram and raghuram rajan institutionalized a system of corrupt practices but ensured that is fairly difficult to point fingers at them.It is unfair to expect Modi to overhaul such a complex system overnight.
If Modi touches the system it will have a ripple effect like in the case of both GST and demonetization.
Obviously he cannot explain this to an ordinary citizen.The 2G scam for instance is so complex that a vast majority of people dont get it since it is comes down to a lot of technicalities now imagine a what will happen when we talk about a defense system.The shameless congress already started making noises on the Rafael.