[5] In August 2012, it was reported that director Padmamagan was starting a new film titled Koothu with Vimal and Prasanna in the lead.

[7] He further stated, "Koothu is a green journey in my life amid rocks and isolated forests with no human approach.

"[4] Alongside Vimal and Prasanna, upcoming actors Richard Rishi, Bharani, Harish and Nithish were part of the principal cast, while Manochitra (then named Nandhagi) and Arundhathi were signed as the female leads.

[8] Filming locations include places such as Malabar Coast, south Deccan Plateaus, Western Ghats mountain rainforests, Andhra Pradesh and Pondicherry.

[1] The film's trailer was released in August 2012 and after a period of inactivity, the title was changed in March 2013 from Koothu to Netru Indru and an audio launch function was held.