It is believable that in this world there are seven people who look similar, weather you believe or not, but it is true. If we talk about Bollywood celebrities, 
Salman Khan recently launched 
Katrina Kaif look alike in his movie 
Veer.
Aishwarya Rai clone 
Sneha Ullal in the movie Lucky. On the other hand, actor of Love story 2050
, Harman S. Bewaja looks alike 
Hrithik Roshan. Many people look similar.