The "Shamitabh" actor, who will share screen space with Kangana in a Rajkumar Hirani-directed commercial, posted on Twitter: "At work at last with the wonder called Kangana Ranaut... She be so good... And talented and wonderful."
The 72-year-old, who had earlier sent her flowers and a note praising her performance in "Queen", even posted a photograph of himself with the actress.
Also praising director Rajkumar Hirani, Big B wrote: "And the other wonder Raju Hirani on set in making!"
Big B, who is seen sporting a fake full beard look for the advertisement, said even though sticking a beard is a "curse", the "end result and the camera makes it believable".
