Again the great Big-B Amitabh Bachan has come onto the role of elder person rather old person love to a lady which is more that 30 years younger than him.

The story about 64 years old Buddhadev Gupta and 34 years old Nina Verma, tabu has played this role in movie cheeni kum.
Buddhadev Gupta, who owns Indian restaurant in London and a chef in the restaurant. He lives with his 85 years old mother and he is arrogant, egoistic, pompous man with a singular passion in life - cooking. A confirmed bachelor who has never been in love.
Cheeni kum which is directed by R. Balakrishnan, claimed that it is not simmiter to Ram Gopal Verma’s Nishabd, In which amitabh bachan is in live with 18 years old girl. This movie faced a major public consiperacy.
Cheeni kum is a sweet romantic story. usually a romantic story usually carries elements of sweetness. When such a story has less sweetness in it, it automatically denotes less sugar. That's why we have named it Cheeni Kum, claimed by R Balakrishnan.
Amitabh Bachan is a chef in Indian restaurant and tabu-Nina verma is a tourist in London who visited there. And the story begins.

Nina Verma, a confident woman currently visiting a friend in London. Buddha storms out and laces the lady with unsubtle sarcasm, laying it on thick and making said friend aghast, leading to the ladies storming out of the restaurant.
A crisply written story, dialogue works very well.
A big wow then to Amitabh Bachchan, the film's marvellous pivot. We shouldn't be surprised by anymore Bachchanism, but the man -- currently, constantly pushing himself onto a limb, decidedly making 2007 his own -- is an undisputable rockstar. His Buddha is smooth yet suffers from occasional social awkwardness, and Bachchan manages both the rough brat and the annoyed old man tones with such ease. He's arrogant and self-assured, yet feels the need to impress her -- while never admitting it. This is one of his finest performances to date, because he sticks to the consistent key of the character, and while the film itself changes genres in the end, he stays Buddha. And is irresistible.

Tabu is a great actress, and with a role that calls for far less bravura than her leading man, she is comfortably understated. As mentioned, their banter runs deep through the film, and her Nina, whom you never know when to take seriously, is a perfect foil to Buddha's don't-ask-the-obvious derision. There is a fantastic moment where she berates Bachchan for being too forward, for daring, like all men would, to ask a girl out and assume she's available, just because she's smiled at him a few times. The tension is palpable as Bachchan falls silent and you wince, suddenly ill-disposed toward her character. 'I do hope you won't be late,' she ends, still deadpan, immediately confirming both date and smirk. 
We would say – its cheeni kum but thoda namak bhi.
Great musical romantic story but with little less suger.