This is the content filter. By appending this, you are telling Google: "Find me an open server directory whose title contains 'Index of' and also contains 'new Bollywood movies'—presumably a folder where someone has uploaded recent Hindi films."
: This narrows the search to folders specifically named or containing these keywords, typically intended to host recent Hindi cinema releases. Why People Use It Intitle Index Of New Bollywood Movies-
While technically, you might still stumble upon a forgotten folder containing Dunki or Salaar , the odds are stacked against you. You will face dead links, malware infections, legal notices, and the crushing disappointment of finding a directory full of .txt files instead of movies. This is the content filter