Complex sentence: Food is a big concern for the contestants as the hell have not a facility of a kitchen, but as per the announcement of bigg boss all the food is prepared by Jannat living mates for themselves and for hell living mates.
Split into simpler sentences: Food is a big concern for the contestants as participants in this area do not have a kitchen. As per an announcement by bigg boss all the food is prepared by heaven living mates for themselves and for hell living mates.