Miley Jab Hum Tum
Nupur and Mayank's final act
S3 E67:
During Mayank and Nupur's final act, they steer clear of the script and dialogue and say things spontaneously. Tamanna and Uday observe that Mayank and Nupur are actually not acting. At the end, Mayank and Nupur do something that shocks Tamanna and Uday.