Well in your case paisapay may not work, as how will you show you have delivered or atleast dispatch.
also why dont you instead go for paispay cod option you need not run around Mumbai for the same.
Well howsoever i am not sure if hand delivery can be resorted to for paispay payments, as its a unique question, need some unique answers, guess, i am too into the box nowadays, cannot think out of the box solutions by myself, hope other fellow sellers will help you out.