The 14-minute-ten-second thriller is set in Kolkata and is based on the story of a character in Hindu mythology of the same name.
The 72-year-old actor took to micro-blogging website Twitter to praise the film.
"The magic of short films... Sujoy Ghosh... Brilliant!!," posted Big B and shared the link of the film too.
The elated "Kahani" director Ghosh tweeted: "Yay! love you sir."
Ghosh has worked with Amitabh in the 2009 film "Aladin". They teamed up again for 2012 released film "Kahaani" but only for the song "Ekla Chalo Re".