Arihant is no nuclear weapon itself, it is mere platform to launch nuclear missiles, those that can even be launched from Scorpene types too. Why making it a big deal to hide the basic deficiencies within? Scorpene (nuke capable) missiles launches are publicized but not otherwise?Going by this logic, India does not have nuclear weapons, because it was never announced with noise. Neither does India have strategic ballistic missiles, because there was no big ceremony IPL style. Please do not let your politics start clouding judgements.
Indian Navy Fires Anti-Ship Missile From Attack Sub in Arabian Sea ...
India-made Scorpene Submarine Test-fires Missile - News18
The world knows India has nuclear weapons after several detonations publicized and even responded to foreign media after their queries.
So your point just became as worthless as a shipyard in Afghanistan.