Sonam Kapoor worked as assistant director with the director Sanjay Leela Bhansali and did her debut with the same director in the film "Saawariya"Varinder Chawla 
Hrithik Roshan worked under his father Rakesh Roshan as assistant director for films like Karan Arjun (1995) and Koyla (1997).Varinder Chawla 
Siddharth Malhotra, actor and model, assisted Karan Johar before his debut in the film "Student of the Year".Varinder Chawla 
Ranbir Kapoor was a assistant director in the films of Sanjay Leela BhansaliVarinder Chawla 
Varun Dhawan, son of David Dhawan, worked as assistant director under Karan Johar before making it in the filmsVarinder Chawla 
Ranveer Singh worked with ace filmmaker Aditya Chopra before getting his first big break "Band Baaja Baaraat".Varinder Chawla 
Arjun Kapoor worked as assistant producer and assistant director before making his career in filmsVarinder Chawla 
Emraan Hashmi worked with Vishesh Films as an assistant director on Vikram Bhatt's "Raaz"Reuters
The shining superstars of Bollywood were once assistant directors of many ace directors in Bollywood.
From Hrithik Roshan to Sonam Kapoor, many actors and actresses preferred to be assistants before they made their foray into the industry.
The debut couple in Sanjay Leela Bhansali's "Saawariya" Sonam Kapoor and Ranbir Kapoor assisted the "Black" director in his previous films.
Similarly, Varun Dhawan and Sidharth Malhotra worked as assistant directors to get a hang of the film industry. They assisted director Karan Johar in "My Name is Khan" before making a debut on the silver screen with the superhit movie "Student of the Year."
Hrithik who assisted his father-director Rakesh Roshan in several film made his debut in the blockbuster movie "Kaho Naa Pyaar Hai." Overnight, the sizzling dancer and ace actor became the next superstar of Bollywood.
"Ishaqzaade" actor Arjun Kapoor was no different. He worked as assistant director as well as assistant producer before his big break on the silver screen.
Serial kisser Emraan Hashmi too assisted Vikram Bhatt in 2002 horror film "Raaz" featuring Bipasha Basu and Dino Morea. Similarly, before making a smashing debut in "Band Baaja Baaraat", Ranveer Singh assisted Shaad Ali in "Bunty Aur Babli" as well as a few film ads.
Check out the above slideshow of the actors who were assistants before making it big in Bollywood films.
