SK 25 (tentative title) is an upcoming movie starring Sivakarthikeyan in the lead. Written and directed by Sudha Kongara, SK 25 is a revival of the dropped 1965 Puranaanooru which was originally supposed to star Suriya, Dulquer Salmaan, Nazriya Fahadh among others. 

The project went on floors on December 14, 2024 (Saturday), and stills of the pooja ceremony have been shared by the makers. SK 25 is reportedly planned on a massive budget of Rs. 150 Cr. by Dawn Pictures. Actors Sivakarthikeyan, Jayam Ravi, and director Sudha Kongara have agreed on a revenue sharing remuneration, taking only a minim initial salary for the movie. 

Also starring Atharvaa, Sreeleela among others, SK 25 has GV Prakash for music, Ravi K Chandran for cinematography, Supreme Sundar for stunts, Sathish Surya for edits. Deputy Chief Minister Udhayanidhi Stalin's Red Giant Movies is the Tamil Nadu distributor of SK 25.