Why is Tamanna not promoting Naa Nuvve?

Tamanna is one of the most popular actresses of South Indian Cinema. She has been actively involved in many big productions and promoted them extensively. She even promoted Baahubali films extensively in Hindi and Tamil also, along with Telugu. She is known for promoting and marketing her films well.

But when it comes to Naa Nuvve, which has her in the lead and most important role, the actress after initial one or two events, never came to the events or did not give any promotional interviews as extensively as she does for other films. After release promotions also are not happening at such rate which normally do happen for her other films.

From the initiation of the project, Tamanna has been the major part of the promotional material and even in the film, she has bigger role than Nandamuri Kalyanram, the hero. So, she being absent from post release promotions and also not doing so much of pre-release promotions, making many think she is unhappy with the production and the film. Is it true? Only Tamanna and producers, can clarify on it.