Possibility no. 1 as Archana was told by Vinod that she has to tke the zimmadari of the house from now onbut that would be so stupid because why can't she takezimedari as manav's wife . he is a nice guy , he won't stop her .
Other than that I see no reason why she will say NO . It cannot be for Shravani now as Shravani hs clearly understood that she will never be loved by Manav .
I don't see manav telling her any lies now .. Espacially the way Girish is shown to be so happy for him.
I hope it is no 3 but as I know of an upcoming leap ....I think it will be possibity no. 1 .