India AGNI series weighs too much for so little payload capacity, meaning it will never be actively road mobile, India's civilian to military conversion technology of ballistic missiles technology means they are too heavy and underpowered (conventional countries develop military technology then apply them to civilian use).
A 50 tonne AGNI-V can only deliver a max of 1.5 tonne payload 5000 km, in comparison a 40 tonne DF-41 can deliver a similar payload 12,000 - 14,000 km.
India is where China was in the late 60s/early 70s with the DF-3A, this is speaking from the power to weight ratio and payload delivery capabilities.
More concerning would be whether India has a working warhead to go with their new missile, with India's poor record of nuclear tests (1998's fizzle), when the unthinkable time comes and India need to use their missile, do they really dare putting a live warhead on it (it may very well burn and explode up on re-entry).