"This is the first time that the third part of a film with the same storyline takes shape," Hari said in a statement.
He said though successful horror flicks, directed by Ragava Lawrence, like "Muni" and "Kanchana" had sequels, they were released with different scripts.
While Anushka Shetty had starred opposite Surya, 39, in Singam and its sequel, Shruthi Haasan joins the cast this time.
"Singam", also made in Hindi with the title "Singham", starring Ajay Devgn, and its sequel are fast-paced action films, with Surya donning the role of an upright police officer successfully taking on crimelords.
Hari is known for action films, including the blockbuster 'Saamy', starring Vikram.
This will mark the director's fifth venture with Surya, after "Aaru", "Vel", and "Singam" Part I and II.