Hey guys I think that Shubham and Vishu are brothers. I think that Shubham is Saroj's first child, who was snatched by......I can't remember her name....??????
Although there has to be more about Shubham's character, cause if he is Saroj's first child, there is one thing.......the first child was called Karan and not Shubham, so why the change in name or have the story writers forgotten that his name was Karan and not Shubham.