"It's a three-heroine subject. Samantha will play the main lead opposite Mahesh," said a source from the film's unit.
Mahesh and Samantha have previously worked together in Dookudu and Seethamma Vakitlo Sirimalle Chettu, which was also directed by Addala.
"Taapsee Pannu and Pranitha Subhash are being considered as the other heroines. They've been called for a look test on Thursday," the source added.
Tentatively titled Brahmotsavam, the project is expected to go on floors in June.