Taking a dig at China, Defence Minister Rajnath Singh on Sunday said "some irresponsible nations" with their narrow partisan interests and hegemonic tendencies are coming up with wrong definitions of the UN Convention on the Law of the Sea (UNCLOS).

It is a matter of concern that UNCLOS is being repeatedly weakened by arbitrary interpretation of its definition by some nations, Singh said, after commissioning of Indian Navy's destroyer Visakhapatnam here.

"Some irresponsible nations, with their narrow partisan interests, hegemonic tendencies are coming with wrong definitions of international laws," Singh said.

Indigenously-built stealth guided missile destroyer Visakhapatnam, packed with an array of missiles and anti-submarine rockets, was commissioned in presence of top naval commanders.

Visakhapatnam' is equipped with lethal weapons and sensors, including supersonic surface-to-surface and surface-to-air missiles, medium and short-range guns, anti-submarine rockets and advanced electronic warfare and communication suits, officials said.