Where was Njanum Ente Familiyum filmed?
2012 film by K. K. Rajeev
Njanum Ente Familiyum (2012) was filmed in Palakkad, Munnar and Pollachi, 3 places named in its Wikipedia article, 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.
Places per Wikipedia's article
The Wikipedia article names 3 places. Each links to the sentence that says so.