what is rajveer story?

How can he be with sid's sister?

I have missed many episodes.

He wanted to snatch DDs property and Sid came to know about his intentions. Rajveer in the meantime was suspicious about Sid identity. Rajveer got Kritika pregnant and Simran wanted both of them to marry. Rajveer then divorced Samaira and came to know that Sid being a Khurana. There was a lot of drama and Simran got Kritika and Rajveer married against Raj and Sids approval.