The honorable Chief Minister of Tamil Nadu Kalaignar Karunanidhi has penned the story, screenplay and dialogues for the forthcoming film Pen Singam and this tale revolves around the murder investigation of a young lady Sudarsana.

Telugu actor Udhay Kiran plays a forest officer in the film and missy Meera Jasmine wears the hat of a police officer. Ajith's brother in law, Richard is in Pen Singam as a Tamil orator. Udhay has made his debut in Tamil film industry with K. Balachandar’s Poi and Pen Singam is his third film here.

The flick directed by Bali Srirangam has music tuned by Innisai Thendral Deva to the lines of Bhavendhar Bharathidasan, Chief Minister M Karunanidhi, Vaali, Pa Vijay and Vairamuthu.

Produced by industrialist N. Jaya Murugan of Nandini Arts with Arumuganeri and S P Murugesan; has completed shooting with a duet song in Switzerland.

Producers of Pen Singam have now decided to release the film on Chief Minister M. Karunanidhi’s birthday on June 3.

Vivek, Radharavi, Raghava Lawrence, Thalaivasal Vijay, O A K Sundar, Ramba, Lakshmi Rai, Lavanya, Anjali Devi, Vaagai Chandrasekaran, Y Gee Mahendran, Nizhalgal Ravi, Madan Bob, Manicka Vinayagam, Sudarsana Sen, Rohini, and Sree Ranjani are acting in this murder mystery