More like they want to brag quickly of their incomplete ship. In India, incomplete naval ship(as long as launched) are automatically included in naval strength to give a false impression of bigger IN.This is always the case in India. While the hull can vacate the building yard, it can float outside moored and they can float out smaller superstructure components by crane/barge and install bridge/superstructure
items.
Vacating the build yard allows a new hull to be started early.