The head of state of Delhi is the Lieutenant Governor of the Union Territory of Delhi, appointed by the President of India on the advice of the Central government and the post is largely ceremonial, as the Chief Minister of the Union Territory of Delhi is the head of government and is vested with most of the executive powers. According to the Indian constitution, if a law passed by Delhi's legislative assembly is repugnant to any law passed by the Parliament of India, then the law enacted by the parliament will prevail over the law enacted by the assembly.
What government body advises the president on appointing a Lieutenant Governor?
the Central government