It's said that relationships are driven by society while love is something that an individual develops!

The age old saying has proved right in all the times. But what about the present times? A time when life is a frantic journey where there is hardly any time left for building relationships? Where is the place for love then? Does it emerge out of a relationship? Or it doesn't really need an invitation to happen by itself?

Can love be so powerful that it could take on relationships.....and break them forever?

The film narrates the tale of two families - Sarans and Talwars. While Sarans are headed by Kamaljit Saran [Kirron Kher], mother of Dev [Shahrukh Khan], Talwars have Samarjit Singh Talwar [Amitabh Bachchan] as the eldest with Rishi [Abhishek Bachchan] as his son! That's not all as the well-to-do families also have a female member in the form of Rhea [Preity Zinta], Dev's wife and Maya [Rani Mukherjee], Rishi's better half.

What is it that brings the members of two families so close that it pains to say 'Kabhi Alvida Na Kehna'?

Each of the young couples comes with their own set of frustrations, desires and expectations. Each of the young couples has their own problems, their own battles to fight. And soon there comes a time when a member from each of the two couples start depending upon each other to comfort themselves!

They are Dev and Maya. Very much married. But now looking upon each other for the best moments of their lives!

What was it about the relationships shared by Dev-Rhea and Rishi-Maya that set them apart? And what is it that would get them closer again?

Both Dev and Maya have a handicap that keeps them unhappy about their married lives. An unfortunate incident changes Dev's personality completely. Handicapped, he starts looking at everything with a negative mindset and finds himself unable to enjoy the smallest pleasures given by life. Whether it is his much-successful wife Rhea or the ones who are closest to him, he is just enable to maintain his composure and hates everything that comes in his way, be it his surroundings, his loved ones, his wife and even his life! With a feeling of loneliness and disappointed all around him, sensitive Dev lashes out at any given opportunity. But Maya's entry in his life brings along a calming effect!

On the other hand Maya too has a handicap of her own that keeps her aloof from her husband. While on one hand she is unable to have children, on the other hand she is not able to give her husband the kind of love that any husband would deserve. Knowing very well that her feelings for Rishi have much left in them to be desired, she feels guilty about the fact but finds herself helpless in this situation. Doubting the very essence of the relationship they share, the love they feel for each other and the life they want to live from hereon, Maya finds herself on the crossroads when she meets Dev!

Passion ignites, sparks fly and true love beckons Dev and Maya when they meet. And then comes the dilemma of accepting the fact about their respective marriage partners on one hand and choosing a life of their choice on the other.

Meanwhile what's the kind of lives Rhea and Rishi want to live?

A confident woman with strong beliefs and resolve about her career having equal, if not more, important as her marital life, Rhea is smart, successful and caring. She may not be the usual housewife that is generally accepted from a woman belonging to her social circle but that is hardly a worrying thought for her as she believes that everything counts in an individual's life, with love and luxuries holding equal importance.

Rishi too loves Maya enormously and it's her and only her who is of utmost imp