Two sisters twins of tender years are found to be abandoned by their biological parents and rescued ...........

Two sisters (twins) of tender years are found to be abandoned by their biological parents and rescued by an adoption placement agency.

Can they both be validly adopted under the Hindu law by a childless couple? It there any legal impediments, how could those be validly circumvented in the interest of children under the general law appliable to all including the Hindu?        (20 marks)