(Credited cast)
Kangana Ranaut ... Sana Azim
Shiney Ahuja ... Aditya Pankaj Garewal
Shaad Randhawa ... Nikhil Rai
Purab Kohli ... Sam aka Sammy
Masumi Makhija ... Rani
Anita Wahi
Ram Prakash
Preeti Koppikar
Abbas
Woh Lamhe tells the story of Sana Azim (Kangana Ranaut) as a
Bollywood superstar who is dominated by her boyfriend Nikhil (Shaad
Randhawa), who makes all her career decisions for her; to the world
she is a successful and independent woman but in reality she is
lonely and lost, a mere puppet in Nikhil's hands. Aditya Garewal (Shiney
Ahuja) is an aspiring director who is keen on casting Sana for his
debut film, but only on his own terms; he is willing to go to any
lengths to get her to agree to the film, even if that means preying
on her slight insecurities and her turbulent relationship with
Nikhil. Nikhil is successful in casting her in her film and the
film turns out to be a super-hit. However, he loses track of his
plan somewhere along the way and realizes that even though his film
is complete and a super-hit, he just can't pull himself away from
Sana; he has actually fallen in love with her in spite of his
friend Sam (Purab Kohli) reminding Aditya that Sana is just their
ladder to success. But Aditya had fallen for her. As the film
progresses Aditya realizes that Sana is not just insecure and
lonely, but that she is also mentally imbalanced; suffering from
acute schizophrenia wherein she is haunted by the imaginary Rani
who leads her to believe that everyone is out to kill her. Sana's
mother and Nikhil get her admitted to the hospital and resort to
shock treatment for her speedy recovery so that she can start
shooting for all her assignments again. What follows is Aditya's
unshakable belief that he can heal Sana and he giving up his
upcoming career in order to take her away from the industry and
free Sana from all of her mental demons. However, Sana is unable to
break free from her illness and one day walks out of Aditya's life
as she no longer wants to be the cause of pain and turbulence in
his life. They meet three years after her disappearance in a
hospital, post Sana's attempt on her life.