Bollywood megastar Amitabh Bachchan and his actor son Abhishek shot a sequence for their upcoming film "Pa" Sunday in the Delhi Metro.

The father-son duo alongwith actress Vidya Balan shot the sequence for the film in a to-and-fro journey from Dwarka Sector-9 to Yamuna Bank and back, spending around four hours in the Delhi Metro Rail Corporation (DMRC) premises.

"Pa" is helmed by adman-turned-director R. Balakrishnan, popularly known as Balki.