It's a bit confusing about the new Tulsi. Is she just an artist change only, where in the artist changes, and there is no need to prove to the other characters about her identity, the way it was changed earlier for Mihir, Chirag, Sahil, etc. and then the story continues as Tulsi is alive and not dead, making Ba and Mihir happy(rest all are hostile now).
Or is it going to be a new person/character who comes to SN and people accept her as some one unknown and new. In this case, how will Tulsi be able to conceal her identity since Ba, Mihir, Tulsi, KT, etc., have got 6th and 7th sense. They always see a storm before some untoward incident, and say " Lagtha hai bahut badaa toofan aanewala hai", or a plate falls and they say "yeh tho bahuth bada abshakun hai" or they get a bad dream.
In addition they are also blessed with the sense of touch. They can identify their near and dear ones, by just their presence or touch.