Just considering possibilities: did they explicitly say it was a PN submarine?
That is the right question.
Quite simply, the missile looks shortened and not thinner. One could hypothesize that the diameter remains the same.
So adding a capsule onto it, I am not convinced that the Agosta 90b is the platform that launched the system.
The very usage of the term "mobile submersible platform" seems to infer a wish to maintain ambiguity on which system launched the weapon.
I am still maintaining that this is the first test of the system from sea. Because regardless of secracy, in a busy shippig route like the Arabian Sea; NOTAMS need to be issued.
That does not prevent any land based tests and simulations as the core software is pretty Modular(had the source code of the very initial guidance system sitting in my desktop some 8 years ago, which was by then 7 years old).
So the main modifications would be to flightsystems to adapt for the shorter body and launch mechanics.
The rest is tried and trusted.
Lol ..ok..if you say so, with these repeated assurances, perhaps you can convince yourself , if no one else.
P.S. : India just tested (again) a submarine launched missile, which can carry a 1.5 tonne nuclear warhead 3500 Kms.
Let us know, when you achieve that capability.
Nobody cares what india does, all that matters is the ability to deliver a warhead to fry you and your family into a crisp.
And rest assured, despite your delusional doubts which only comfort you.. that we are very capable of doing so using just land based system inspite of any bmd you may put up.
As long as you sit in any Indian city with a population greater than 50000; you are a dead man.