I partially agree with this :
Aarzoo wakes up from her behoshi, recovers fully (or even partially). Blurts out the truth to Nausheen and Alvira hears it (or comes to know about it somehow) The entire family decides to go back to Lucknow and Sahir comes to know about it, pleads with Alvira to let them stay. Alvira is appalled at Sahir's plan, refuses to help him, but he begs his mother (when HC decides to beg with those puppy eyes, who wont relent?) Alvira puts a condition: Marry Aarzoo!
I want her to completely recover and I dont Nausheen to find out the truth because no matter what she will never let Arzoo marry Sahir even if Alvira says so. And for sure we will have another ICU drama.
I think she should keep it to herself. Like in real life how boys/girls dont share their stories.(*well I assume so)