R Madhavan has got into the coat of ISRO scientist S Nambi Narayanan for his debut directorial Rocketry: The Nambi Effect. The actor started assassination for the film on Monday. And, now, his latest photos, which show his transformation as Nambi, have surfaced from the set of the film.

In the photo, the 48-year-old actor looks like a double of Nambi Narayanan, an Indian scientist, an aerospace engineer.

Talking about his look, Madhavan, who worked on his looks for the film for about two and a half years, said, "The process took glaringly long, about two days of a session on a chair for 14 hours at a stretch. Initially, it looked easy, but later I realized how tough it was on the body."

Adding to it, he said, "The look is half the encounter won. The other half was really tough because the age group I am playing is around 70-75. Mr. Nambi is a very good looking man and he has got his own charm and charisma so it took me around two and a half years to in fact imbibe him and learn how to walk like him. It wasn't easy, and it's almost certainly one of the toughest looks and characters I've had to pull off."

On Monday, Madhavan shared a photo from the set of the film where he was seen with the clapboard of Rocketry: The Nambi Effect. He captioned the image as, "Need all you BLESSINGS. Nambi Narayanan was an older official at ISRO and was affecting with intelligence in 1994. CBI dismissed the charges against him in 1996 and in 1998, Supreme Court affirmed him not guilty.

Rocketry: The Nambi Effect will be released in English, Hindi, Tamil, Telugu, and Malayalam. It will be shot lengthily in India, US, Scotland, France, and Russia.