A couple of quick comments about this script, Rajesh. First off, your formatting has problems. When you describe things, you should describe them only as the camera can record them. On page one, you describe the guys as close friends on a trip backpacking, like friends would do. You're telling us that they're friends when you're supposed to show us. You do the same thing at the end when you introduce the newlywed couple as the newlywed couple. You have to describe them visually (you do later on, but it's too late).
The biggest problem with this script is that you have Anil telling his story for three pages. Instead of showing us the visuals, we are watching an old man talk to us, and that's wrong. Movies are a visual medium; you need to show us things, not tell us things.
Reads some scripts here. Some of them are great learning experiences.