The bromance between Fawad Khan and his Kapoor & Sons co-star Siddharth Malhotra has reached another milestone.

Siddharth has a nickname for Fawad, which is an inside joke between the two.

He calls his buddy 'Masla', a word Fawad uses a lot. The Urdu word is new for Siddharth who, according to Bollywood Life, has even saved Fawad's contact as 'Masla' in his phone.

In fact, when the duo were watching Bajrangi Bhaijaan in the cinema together, Siddharth let out a whistle upon hearing Nawazuddin Siddiqui say 'masla'.

Recently, it was learned that Fawad has been giving Urdu lessons to his Kapoor & Sons friends – Siddharth seems to be having the most fun of them all!