Forward

A mother calls out to her 5 year old son, who is playing with a water hose.  "Nishanttt, come here quickly!" He runs to her discovering a small puppy in her arms, that she decided to gift him. He adores it and hugs his mom.
25 years down,  Nishant is having a romantic meal with his girlfriend, he pulls out a ring- asking her to marry him. She has tears of happiness and she says yes. Soon after- Nishant and his friends are partying at his place to celebrate his engagement. His friend introduces him to a japanese drink that must be consumed in small quantities. He is already pretty drunk and takes a HUGE shot of it. He immediately passes out. The next morning - when he wakes up, Nishant  slowly goes to the living room and turns on the TV. While flicking channels he stops at a breaking news of a flood in Chennai. He is confused since he feels he already knew this since a month ago. He flips the channel again and sees another news of Miss Columbia being crowned Miss Universe. He sits down to breathe. He knew all of this already! He checks his calendar and it says OCT 21 2015. Nishant was SURE it was November. He has no Idea how this is happening. He gets some fresh air and decides to go to a Starbucks that recently opened near his neighborhood. He reaches there to find its still under construction and hoarding says: opening soon! By now he's convinced that somehow - he has seen one month into the future. However - whenever he tries telling anyone this - they don't believe him. And he can't prove he's right since he doesn't remember many future changes happening in that month. He goes back home thinking about how this all started and figures it was that drink his friend gave him at the party.  He looks for the bottle and has a bigger dose this time, he immediately passes out.
He wakes up again, and he writes on a piece of paper what he thinks is the data. "For certain it's December 2017". To his shock and excitement - he sees the calendar in his room still say Oct 22 2015. He instinctively decides to tell his wife about his gift, but when he looks for her at home - he realizes he still not married to her and she at her own place. He goes to her to speak to her and he tells her and proves it to her that he can see the future.  She is excited on learning this and after some time she thanks him for the ring he gift her at the restaurant just a few days ago. Now the funny thing is, Nishant has no recollection of this. He asks her for details on how the proposal exactly happened and he has absolutely no memory of it. She begins to cry, and he tells her to stop acting like a child because she is failing to see the bigger picture, of what this means that he can actually look into the future, and he reminds her of how happy they both are 2 years from now. He worries slightly, but he decides to take this as a small bump in the road. He reaps the benefits of knowing 2 years before hand and makes a lot of money in the stock market, and he makes no real effort in trying to 'change' what is set for the future. A year later, he is married now and decides to buy a bigger apartment. While moving out stuff, he finds that Japanese bottle again. What if he had a bit more of it? He would know what happened much much further - like … what are the advancements in science and technology say 50 years from now..? But he remembers what happened the last time he took the drink, that he lost his memory just for those few days. He weighs the consequences. Curiosity gets to the better of him and he drinks up. He drinks the entire bottle. He tries standing but he loses consciousness and falls to the ground. He wakes up in the hospital.  A few people surround him, 2 nurses and one doctor. He doesn't see his wife/gf anywhere. The doctor tries speaking to him asking him if he can remember what happened.
He last remembers himself drinking that bottle. He knows what that meant, so he quickly writes the date on a piece of paper : April 2045The doctor seems confused, but Nishant is VERY excited. One of the ladies who seemed to be a nurse rushes to him and hugs him saying "Thank god you are awake, I thought something happened to you"He breaks the hug and with a blank expression asks her: "wait.. Who are you?" The camera shows clearly that the girl he thought to be a nurse was his girlfriend who is shattered to bits. And the other nurse behind was none other than his own mother.