I think Something goes wrong with India. If We take air defence missile example, We will see that India is ordering various type of missile system from Israel, Russia, USA.. Besides trying to develop something on her own.
If you want to tie all those air defence units to operate by a single software system under the network centric warfare, I think You can not manage this job because Such a different type air defence missile units will bring you increadible headache to operate all those under a network. Maybe, Israel or Russia will not give you permission to chance the software codes of their air defence system to connect your central command-control software. Logistic disadvatages are also another issue to talk about...