First, "top download" suggests they're looking for a report about the most downloaded or popular content related to "thecarnalsutramat1987". Then there's "dual audi". Maybe that's a typo for "dual audio"? That would make sense, as dual audio versions of media are common where content is released with two different soundtracks, usually in different languages.

Considering all this, the user is likely looking for an informative report about the top downloads related to a 1987 work titled "The Carnal Sutra" with dual audio options. However, given that I can't confirm the existence of such a title from 1987, the answer should address possible misunderstandings. Maybe there's confusion with the title, the year, or the nature of the content. It's also possible that the user is referring to a less-known or independent work.

If "The Carnal Sutra" is a book, perhaps it's a mistranslation or a mix-up with other titles. The "Kama Sutra" is a well-known Indian text on sexuality and wellness. If the user is blending "Carnal" with "Sutra", they might be referring to a derivative or a modern take.