Mamaankam marks the directorial debut of Sajeev Pillai, a former associate of the legendary Adoor Gopalakrishnan. The movie stars Mammootty in the lead and is touted to be a big-budget period drama revolving around a medieval festival which is conducted in every 12 years in the banks of Bharathapuzha in Thirunavaya region. The movie is scripted by Sajeev Pillai after 12 years of extensive research on the topic. Venu Kunnampilly is producing Maamaankam under the banner of Kavya Films. The movie touted to be the most expensive film in Mammootty's career; MT Vasudevan Nair team’s Pazhassi Raja, which was made on a budget of Rs 24 crores, was the actor's most expensive film till the announcement of Maamaankam.