The film falls flat in its comic timing though the comedy should have been dark or slightly dark like most funeral comic family dramas do.. There is nothing wrong in the writing apart from certain scenes being overtly on-the-face comedy (the beginning scenes) that is obviously forced on the characters to enact. The writing is slow in the first half and the to & fro to the past and present is definitely not working. The dialogues are again very silly, neither realistic nor cinematic or maybe it's the dialogue delivery because once Sunil enters the frame the dialogues are interesting even after he leaves the frame. There are illogical scenes too (car phone speaker scene).
The casting of Rashmika Mandanna is what brings the bigger part of the film down. She can't speak hindi well. Her pronunciations are yuck. Whenever she speaks either she tries hard on concentrating on her pronunciations or on her acting because none of them works. I think its the language that is holding her back from acting. There is no free flow of emotions.
The film's best moments are by Sunil Grover's Panditji character. Not that I am a Sunil fan but the character is like the savior in the midst of bad acting. Amitabh Bachchan is as usual good but his character is written half heartedly. He has done justice to his role though.
Neena hardly has any dialogue and yet she is a ray of sunshine. The lady who plays the care taker has very little to do but her simple looks and expressions are so much better than Rashmika's acting.
In short, letting the badly written first half, Rashmika's presence & pronunciations, the film in general has a good flow and is worth a watch.
