One quick reason that comes in mind with this question is the intimate scenes she is having with Ranbir Kapoor that is making all the difference, however, the fact remains just the opposite. It is not the steamy scenes that are prompting her to evade its promotion but something else that comes along as the reason for the same.
On the other side Ranbir Kapoor who will be promoting the movie at various platforms though both for the leading ladies who are seen intriguing by their absence. As per the latest reports, both Ash and Anushka are busy in their own projects as the latter is doing the movie called The Ring by Imtiaz Ali.
On the other side, Aishwarya Rai Bachchan is seen tied up with her own engagements. Once Anushka is back from Europe finishing her engagements the two ladies of the film will be promoting the film and hence one can make out the real reason that is behind promoting the film by Ash.