Because these sites are frequently blocked by ISPs. Even if you find a working mirror, the file itself is often removed by cyber cells or cloud hosts within 24-48 hours.
Next time you see an "updated" tag on hdhub4u, remember: the only thing being updated is the method they use to trick you. Stay safe, stay legal, and enjoy Delhi Safari the way the creators intended—in high definition, without malware. hdhub4u delhi safari updated
Have you seen a pop-up claiming "Delhi Safari 4K Updated"? Report the link to the Indian Cyber Crime Coordination Centre (I4C) at cybercrime.gov.in. Because these sites are frequently blocked by ISPs