No, 'Sanam Teri Kasam' is purely fictional. The plot and characters were imagined for the purpose of entertainment and not drawn from real-life events.
One of the main themes is friendship. The bond between Naina, Bunny and their two friends is shown throughout the story. Another theme is self - discovery. Bunny goes on his adventures around the world and through that he discovers what he really wants in life. Love is also a significant theme as Naina's love for Bunny is a driving force in the story, and eventually Bunny also realizes his love for her.
Well, the story of Yeh Jawani Hai Deewani goes like this. There's Naina, who is very much into her studies and is a bit of an introvert. Then comes Bunny. He's the life of the party, loves to travel and experience new things. Their paths cross during a trekking adventure. Along with their two other friends, they have some amazing times. Naina falls for Bunny's charm but he is too busy chasing his dreams all over the world. But at a later stage, when they reunite, Bunny has had his fill of wanderlust and discovers that what he really wants is a simple life with Naina. So, in the end, they get their happily - ever - after.
The main characters are probably Teri and Meri. Given the title, it implies that their relationship and their experiences together form the core of the story. They are the ones whose love story is being told, and all the events and emotions revolve around them.
Sure, you can watch it if it's shown on TV, available on a streaming service you use, or if you can find it in a local video store. Just make sure you're accessing it through legal and authorized means.
They might start communicating again after a long silence. This could be through a letter or a chance phone call. Then, they could slowly start rebuilding their relationship.
I'm sorry, I'm not familiar with the specific 'banoo main teri dulhan' story. It could be a story from a particular region, a local folktale or something specific to a certain community. Maybe it's a story about a girl who becomes someone's bride, but without more context, it's hard to tell the full story.
It depends. Sometimes shows are region-locked or require a specific subscription plan. So, have a look at Hotstar's content offerings and your subscription details.