India, Oct. 27 -- Actor R Madhavan has unveiled the first look teaser of his upcoming film GDN. Taking to Instagram on Monday, Madhavan shared a video in which he starred as 'Edison of India' GD Naidu.

The actor looked unrecognisable in the biopic of the "self-taught engineer and industrial pioneer." In the 43-second-long video, Madhavan as Naidu is seen working. The actor captioned the post, "The spirit of G.D.NAIDU is now officially unveiled. A story of unmatched vision, towering ambition, and unwavering resolve. We proudly present the First Look Teaser of GDN."

The video was shared on Varghese Moolan Pictures' YouTube channel with the caption, "Unveiling the legacy! R Madhavan transforms into G.D. Naidu, the self-taught engineer and ...