I am hundred percent sure it does not contain any treasure it was just urni's flop thought!
And I am also sure that it must be some thing interesting as cv's are trying to create suspense.
But the question is still there what is in that secret room and If it is just a room why they will go there on daily basis?After watching koki coming out of that room in Precap one sudden idiotic thought came in my mind that is maybe Modi's has kept someone locked in that room like some Insane family member but it is not possible how goshi are unaware of it for 2 years when they are living in same house and if there was any insane person he/she would have made noises? I just pray cv's doesn't comeup with something illogical!Fingers crossed!
What do you think is they story behind this secret door and secret room do comment and share.:-)