As per Bollywood City reports on their youtube channel, Ranbir Kapoor and Alia Bhatt broke into a major fight after their promotions on the Telegu Big Boss show.  
While promoting the film Brahmaastra on it, Kapoor was seen calling Bhatt an environmentally friendly firecracker, Lakshmi bomb, chakri and so on.  While Bhatt maintained a silence on screen and seemed less than amused, she is supposed to have later been caught crying and fighting with Ranbir over these statements. One wonders if this is a publicity stunt to boost the viewership of the film. 
After all, Kapoor hasn’t been seen on the silver screen in almost 4 years so he really needs the push. With films being boycotted left, right and centre nowadays( what say ’83?), doubtless, the duo would need to find other methods of attracting more out of the box publicity.  And with most events being bombed out by omnicron, what else can they really do to scandalize everyone? 
They can hardly throw a scene at the discotheque and hope it merits attention. Kissing fans, on a more positive note, as they go across country, would also be out of the question. So what might RanAlia decide to do? Make a mountain of a molehill. After all, how coincidental is it that a behind-the-scene tiff went viral so quickly?  
It can’t be a coincidence for the paparazzi to show up right that instant when the two happen to be arguing with one another.  This is, after all, a matter of  ‘Oh honey, I think you need to be careful with what you say’ and the matter could be over in 2 minutes.  So how do we go from something so simple to scandalous in a matter of moments? We certainly don’t need Sherlock Holmes to figure this one out.