The confusion often stems from unofficial "fan-made" titles or pirated content listings that use high season numbers to attract clicks. Here is the factual status of the series: Official Franchise Status
The television series Narcos officially concluded after Season 3 . There is no "Season 13." It is highly likely that the subject line refers to a compressed file containing Seasons 1 through 3 (often abbreviated as "S01-S03" or "Season 1-3") or is a mislabeled torrent file. narcos season 13 dual audio hindi org eng