Kollywood actress Nayantara has upset Mollywood film association, AMMA according to sources.The actress was approached to perform a dance number at a cultural programme organised by AMMA. She willingly accepted the offer, but never attended any practice sessions. The office bearers of the association approached the actress but she was reluctant to attend the rehearsals. The organizers planned to take action against the actress according to sources. However sources say that the actress is planning to settle down after her marriage which is expected to be announced by the couple without delay.