Where was Pariyerum Perumal filmed?
2018 Tamil film directed by Mari Selvaraj
Pariyerum Perumal (2018) was filmed in Tirunelveli and Thoothukudi, 2 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 2 places. Each links to the sentence that says so.

