I was just watching episodes of different serials..
The room they showed as DK's room before Havan scene (otherwise they showed diff room) is same as Dhruv's room in Sinndoor Tere Naam Ka and Aastha's room in Astitva Ek Prem Kahani. I do not watch Astitva much.. but noticed that room with transparent steps...
so.. room sharing in Zee tv..