My Dad Made a Crazy Deal for My College Admission—Now I'm Panicking

So, I (18M) am preparing for JEE, and like every other aspirant, I’ve been grinding for the past two years. My dream is to get into a top IIT, but realistically, I’d be happy with NIT Trichy ECE, given my category and rank expectations. Now, here’s where things get weird. My dad, who’s a mix of traditional and eccentric, made me a *deal* last year when I was struggling with motivation. He said, **“If you get into NIT Trichy ECE or better, I’ll give you the biggest surprise of your life.”** I assumed it was a bike, a gaming setup, or maybe even a trip abroad. But last week, I asked him about it, and he dropped this bomb: **“I’ll finally bring your long-lost twin brother home.”** At first, I thought he was joking. But then he got all serious and said, **“I never told you this, but we had another kid at birth… He was sent away for reasons you’ll understand when you’re older.”** I laughed, thinking it was just one of his dramatic motivational tactics, but my mom’s reaction freaked me out. She just looked at him and said, **“Why would you tell him *now*?”** Now I don’t know if they’re messing with me or if I actually have a long-lost twin out there. My dad refuses to give more details and just says, **“Get the rank first. Then we’ll talk.”** I can’t focus on my studies anymore—what if I actually have a twin? What “reasons” made them send him away? And why would my JEE rank determine when I get to meet him?? Has anyone else’s parents ever pulled something this insane? Should I press them for answers or just focus on my exam and deal with this afterward?