R u sure tht was original plot cause from first episode itself they showed vansh riddhima tashan music of love etc and usually all tv shows thts the pair they show together....
when i saw first promo of kabir asking riddhima to marry vansh i knew riddhima and vansh will b paired cause thts how usually happens in tv shows......
First only i knew there is great possibility kabir getting negative which was i think expected by most if them.....cause if u love someone u never want it to be wife of others even though for patriotism etc
Might be I'm wrong....but I had read that n even in one interview also they said that..... initial interviews.....I remember it clearly....well it's true that whatever they say in interview not always true.....
For that marrying part it was original and it was quite obvious with that the Kabir is not so honest police officer......