What if Supriya switches on the AC and Naku sensing the danger thereby saving her.
No much importance is given to Supriya's character so far in the show.
So I dont think such a big 'kaand' will happen only for Supriya.
If Naku saves Supriya, then maybe after that Duuta will try to show concern for Naku but Naku, following her mother's advice, will try to stay away from Dutta. In this way, maybe Dutta will feel something for Naku.