Collection O was first introduced in the 1970s, a time when Indian cinema was still in its formative years. The collection was designed to showcase a selection of iconic films from various genres, including drama, romance, comedy, and action. Over the years, the collection has undergone several revisions, with new films being added and old ones being restored to their former glory. Today, Collection O comprises over 100 films, each one a testament to the artistry and craftsmanship of Indian filmmakers.