For a change, this is not a fun post.
Now that we know that Zeenat has been faking her coma, lets dissect the unexplained things that have happened in the serial so far (Apart from the falling trp)
1. The murder attempt in US/UK? Who was it? Dr Khurana? Or ACP? I think that was the time when she recovered fully from the coma. Maybe because of some medical miracle again researched and tried upon by Dr Khurana.
2. Ambulance se gayab hona: Again quite a feat. ACP helped here by arranging for the doping gas, he himself was at the Niyamat house then and then pretended complete ignorance of the matter.
3. Ghar main prakat hona: Nothing big. Someone who can walk, talk and think logically can easily do this. Same logic for swimming pool main floating practice and Aarzoo ka haath pakadna. BTW, which doctor could she fool about her coma? No MRI, No CT scan.
4. Maid ka murder: possibly by Zeenat, thinking it to be Aarzoo. Pehle dekha nahi tha naa. To kissi bhi light blue colour ke dress ko dekhkar inko laga ki Aarzoo hogi. Isiliye. Ya phir maid ka murder is another drama, the maid isn't dead at all. I won't be surprised if she is another accomplice.
5. Sahir aur Aarzoo ki gaadi ke samne aana: Maulvi, who is on the payroll of Anam, kidnaps Zeenat. Anam has no idea then that Zeenat is fully conscious (or has she?) Maybe Anam has no idea at all of Zeenat's plan. It is Zeenat who koshes Kurti Aapa. Then a woman (possibly Rubina the maid) calls someone and says that they are on the way and Zeenat positions herself strategically in the middle of the road. The intention: Aarzoo is to be charged for the murder.
6. Aarzoo ka gala dabana: done through a rope trick (possibly) first a gas knocks her out momentarily, then a rope is drawn across her neck and she falls back towards the window. Then reach in from the window and try to strangulate Aarzoo, the door is jammed. Trust Kurti Aapa to wash away the evidence.
7. Aarzoo pe goli chalana aur Sahir ke IV main injection: The marksman was possibly Maulvi. That was possibly Anam's plan to murder Aarzoo...remember she had blurted out to Kurti Aapa about that intention and someone had recorded it. Sahir ke IV main injection was not a difficult feat for Zeenat. Intention was Sahir's murder, once she realized that Sahir and Aarzoo were going to be together.
How is this going to end? Aarzoo kidnapped, our hero to rescue. Possibly Anam is also kidnapped, and will be returned by the kidnapper for free. ACP will expose himself through some not-so smart talk (Sarkar manne...paise deti hain?) Or Anam will part with his number (she had promised to divulge the number to Sahir?) ACP's cell phone will give a hint of Zeenat's number...Does Sahir remember Zeenat's number still? Wow. Sahir will call the last number from the cell phone and Zeenat will answer. Or if Kurti Aapa is around, Zeenat will pretend to be in Coma and Kurti Aapa will answer. Sahir will think that Kurti Aapa is the brain behind all this...I can't think of more. Now you people do think and contribute please...