The actor, who has made a name for himself, decided to celebrate his birthday on location in grand style, unit sources said.
Cakes were ordered and the place was decorated beautifully. Everything was ready and the birthday boy and the rest of the crew were waiting for the leading lady of the film to turn up.
Trisha, however, was said to be inside her make-up van unmindful of the birthday bash that was being planned outside, unit sources added.
Though Gopichand was about to cut the cake, he was made to wait by the director who assured him that Trisha would join them.
She, however, never came out and finally the birthday celebrations took place in her absence, sources said.