The golden age of unsecured indexes ended around 2015. Today, most directories you find via that search will either be dead links, honeypots for malware, or low-quality rips. Even if you find a working index, you are stealing from the hundreds of artists who poured their souls into making Lagaan.
Instead, consider this:
Even if you find a legitimate index, there is no quality control. You might spend an hour downloading a 2GB file only to discover it’s: index of lagaan 720p
When you access an unofficial index of lagaan 720p: The golden age of unsecured indexes ended around 2015
The good news? You don’t need to risk malware or legal trouble. Lagaan is widely available on legitimate platforms. honeypots for malware