That's the name of a famous 60's Hollywood movie with Cary Grant and Deborah Kerr.
Last night's episode with the car hitting Kasturi while Robbie waits for her on the rooftop reminded me of that movie.
The two characters in the movie meet on a cruise and fall in love and agree to meet on top of the Empire State Building after the journey. While Cary Grant waits for her there, Deborah Kerr meets with an accident while she was crossing the road to reach the building. Exactly as shown yesterday...even the scene where the people gather around Kasturi while R is on the roof. He spents the next few months/years believing that she'd changed her mind about them.Later Cary finds out that Debbie is in a wheelchair. she apparently didn't want to be a burden to him so didn't contact him or some such.
I'm 100% sure Ekta will lift this idea from the film. Didn't Bollywood do the same with a Aamir-Manisha starrer called Maan?