The proper article for the given title would be: Troy Fall Of A City Sub Indo Now
This is because "bust" starts with a consonant sound, which requires the indefinite article "a". London Has Fallen Tamil Dubbed Movie Tamilyogi Install Page
However, if you're asking for the correct usage of "a" versus "an" in the title, it should be:
"The Video Title: Keisha Grey - What A Bust - BigNat..."
So, the corrected title would read: