Where was Iruvar filmed?
1997 Tamil film directed by Mani Ratnam
Iruvar (1997) was filmed in Leh, 1 place 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.
Places per Wikipedia's Filming section
Wikipedia’s Filming section names 1 place. Each links to the sentence that says so.