it's not there fauilt dear, they are human, not super nuture people, if karan, ganga,damini saw orginal tulsi front there eyes they also will react same as shoba & mybe more, if karan saw orgianl tulsi front him than the track was end befor long time....................it's ekta old styel to drage the story more & more, i am sure today also when bill will run & they open the door will find mandira, i think tommrow tulsi & mihri will step in, why would mihir run the bill of SN, he will step in since when animes & member of SN used to run the bill befor they enter the house************************i don't get this if there is party at house normaliy the door would be open for guest, why virani will close the door as it mention in perviwe********************************