His look is being re-styled.
"The Villain" team wants Siddharth to look tough, mean and mildly stubbled. The look requires him to look brawny and even sport a different hair-do, said a statement.
"Siddharth's look is been worked upon right now. There are look tests which are happening. He will be seen in a different genre of film. Hence, his look is of uttermost important," said a source.
So far eight to 10 looks have been tried on the actor, who was earlier a model in Delhi.
Balaji Motion Pictures and director Mohit Suri are keen to position Siddharth as the quintessential mass hero in the film, set in Mumbai.
Bollywood celebs show you colours for Navratri 2017
Photos: Kareena Kapoor Khan, Kangana Ranaut at the Mumbai airport
Birthday special: Chris Gayle and his multiple records in cricket
In Pictures: 17 dreaded on-screen villains of Bollywood
'Ramayan' director's great granddaughter Sakshi's hottest photos