Director Shoojit Sircar has been conducting workshops with Amitabh Bachchan and Deepika Padukone along with the rest of the cast for his film, Piku.

The film, based on a crazy father-daughter relationship, has Big B playing daddy to Deepika. Sources from the film sets reveal that the chemistry between the two stars is "amazing".

Bachchan and Deepika have been rehearsing their lines together, doing acting exercises besides working on the finer nuances of the Bengali culture which is depicted in the film. The unit will be soon beginning their second schedule in Kolkata.