It was announced two years ago that Attakathi Dinesh and Kalaiyarasan will work together in Irandam Ulagaporin Kadaisi Gundu, or simply Gundu's director Athiyan Athirai on Thandakaaranyam.

The makers, on Monday, announced that the film's first single will drop on October 23. The announcement poster features Rithyvika and Dinesh, suggesting the first single being a romantic number.

The recently released first look poster of the film showed Kalaiyarasan is seen in camouflage holding a red flag, while Dinesh looks like a villager who has weaponised a tree's twig. The film's title, the name of the forest from the Hindu epic Ramayana, where Lord Ram was sent to exile, suggests the film will be set in a forest and will revolve around naxalism.

The film, produced by Pa Ranjith's Neelam Productions and S Sai Venkateswaran-S Sai Devanand's Learn and Teach Productions, also stars Riythvika, Vinsu Sam, Shabeer Kallarakkal, Muthukumar, Arul Dass, Saranya Ravichandran, and Bala Saravanan in crucial roles.

The technical crew of the film comprises cinematographer Pratheep Kaliraja, editor Selva RK, and music composer Justin Prabhakaran.

The film completed shooting and entered the dubbing process as early as mid-July last year.