I hv posted dis in another post, so just copying nd pasting here too.
Vaibhav is 1 of d main protagonist of d show. In d beginning he wasin love wid Sabina, but as she was a film actress, his father, IMV who is a business tycoon didn't want him to get married to her. He got hold of some unsavoury secrets of Sabina's past nd forced her 2 leave Vaibhav nd disappear frm his life, which she did. Vaibhav married Devki, his father's choice, nd d main female lead of d show.Though their marraige was in name only, but slowly Vaibhav became fond of Devki nd sees her as an invaluable friend, whereas Devki has fallen in love wid Vaibhav. Devki too is a businesswoman nd whn Vaibhav shows concern 4 a Sabina's film which had been in cold storage, Devki (who only knows tht Sabina is Vaibhav's friend) volunteers to distribute the film. Unware dat Vaibhav nd Devki r behind her film Sabina returns for d promotion of d film. Devki nd Sabina too know 1 another nd r very fond of each other. Whn Sabina finds out abt dis, she immediately plans 2 return back 2 Singapore, where she has been staying since her forced exile. As she is about to leave in her car nd Vaibhav nd Devki had come to see her off, she sees a guy aiming a gun at Vaibhav nd she comes in between nd takes d bullet. Now she is recuparating at Vaibhva's house nd realises dat Vaibhav still has feelings for her. She has been repeatedly telling Vaibhav to let go of d past. All r under d impression dat she is married nd whn she finally finds out d truth about Vaibhav nd Devki's marraige, dat it was a compromise, but now Devki loves Vaibhav, she decides 2 finally bring a fake husband in d picture 2 discourage Vaibhav nd reassure his very concerned mother.😉
PS: it's not as simple as that...there is a lot more 2 it den a cliched love triangle, I've just given d background of Vaibhav, Sabina nd Devki.