Where was Lalitham Sundaram filmed?

Indian Malayalam-language film, Lalitham Sundaram

Lalitham Sundaram (2022) was filmed in Ernakulam, Vandiperiyar and Peermade, 3 places named in its Wikipedia article's Filming section, in India. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

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