Techincally no.. However, you do get lounge access in DEL, becuase tou are flying Business, now with that, at check in, request you exchange that business lounge access for the one in DXB, maybe they might be kind enough to do it.. but dont get your hopes up.
(On a side note: i dont know your current mileage, but i would have focused on getting upgrade from DXB-SYD.. thats worth an upgrade.. 14 hour flight.)
and for some reason, i always thought it was 8 hour layover for hotel???