One policymaker can scarcely hide his delight

One policymaker can scarcely hide his delight, describing India’s recent economic success as “nothing short of a miracle”.
What is the meaning of the sentence above?
What is the meaning of the bold part?

India’s economic success is miraculous.

Hi,

The sentence means that one policyholder clearly shows his pleasure (he doesn’t hide his delight). You can see his pleasure from what he says and the way he looks.

Alan