library in kendriya vidyalayas

When a librarian is on leave the library is closed.As there is only one staff then how can it be opened.There is no standing rule of KVS to open and run the library when the librarian is on leave.Actually who will take the responsibility of such amount of books and other documents ? It can be solved only if KVS provide an assistant to the KV library. If you have other solution the pl.reply.