There was a movie named Sandwich, in which Govinda had two wives and the kids from both the wives looked exactly the same. So this half brother theory can be true, even if it's ridiculous, it has more possibility than twin brother theory. Daima also said to Shivaye that, Oberoi sahab ka bada beta najayaz hain. So what if Oberoi sahab is Shakti, and najayaz beta is duplicate Shivaye???
Great point!Daima was the nanny of Shivaye, so that means she was more close to Shakti. She must be knowing some of his secrets. I think Duplicate Shivaye doesn't hates the real Shivaye because in reality, there is no fault of him if he took his place and he understands it. As duplicate Shivaye is bad but not a kameena like he says. He is not blind in his revenge. But he hates Pinky because Kamini must had put hatred in his mind for her. Kamini must have hid this duplicate Shivaye, away from the world as he was her illegitimate, and therefore he has a different accent.The fake Shivaye doesn't really looks like a bad guy. So I'll not like it, if he gets killed. But going by the trend of other shows(Udaan, MATSH, QH), I think that is what going to happen. CVs just bring a twin brother or sister out of nowhere. Then they don't know what to do with the character, and just end killing it. btw, does this imposter has any name??? Lets call him Gangaram,lolz.