my parents had 4 big suitcases,,all checked in on both way flights, they carried only hand bags. There was no problem at all, moreover, they directly transferred all luggage to another flight by themselves in india after reaching delhi airport even after those flights are two different airlines. I told the personl while checking in the luggage that my parents are takein Jet airlines from delhi after 13 hours transit in delhi so please let your assistance there know that the luggage have to transfer to the right place. my parents didnt even touch the luggage for the entire travel. they recieved them in nepal airport.