We saw BFFs Ranbir Kapoor and Ayan Mukerji's combo in films 'Wake up Sid' and 'Yeh Jawani Hai Deewani.' Now the combo is returning with their next film tentatively titled 'Dragon' based on the backdrop of superhero subject.

A photo posted by Ido Portal (@portal.ido) caught our attention where Ranbir and Ayan were spotted with an instructor, who specialises in martial arts and different forms of fights.

The picture was captioned as, "Great meeting with Indian film maker Ayan Mukerji and superstar actor @ranbirkapoor discussing a big Bollywood production that I'm involved with. When passionate people are coming together in collaboration to fulfill a fantasy - expect truly FANTASTIC things coming on your screen in 2018. #dragon #ayanmukerji #ranbirkapoor #idoportal."