I'm going to make this a fairly short review since the movie speaks for itself:
Piku, directed by Shoojit Sircar, is a heart-warming story that revolves around Bhashkor Banerjee (Amitabh Bachchan ) and his daughter, Piku (Deepika Padukone) and their daily bikering & laugh-worthy arguments surrounding Bhashkor's bout with hypochondria. While on a roadtrip from Delhi to Calcutta to deal with an old property issue , the father-daughter duo are unexpectedly accompanied by Rana Choudhary (Irrfan Khan) and just when you think the movie couldn't get any funnier, it does.
Fabulous casting and equally amazing performances. Seriously, kudos to the casting director for appointing such amazing talent (for the leads & supporting cast) to so aptly fit into the movie's characters.
Things to look out for: The loud yet endearing relationship between Piku and her father , the subtle chemistry between Rana and Piku, the roadtrip, the hilarious conversations between Bhashkor and Piku's aunt (Moushumi Chatterjee) , how absolutely beautiful Deeps looked in every scene, and all the Bengali!