You cannot get the entire fully-playable GTA Amritsar in exactly 400MB. You will always need the original GTA San Andreas (PC version). The 400MB file usually refers to the mod add-on only .
The game environment is modeled after Amritsar, featuring local landmarks, villages, and markets. gta amritsar download for pc 400mb
If you're unable to find a GTA Amritsar game or prefer not to download from unverified sources, consider these alternatives: You cannot get the entire fully-playable GTA Amritsar
Since it’s a mod of San Andreas, requirements are nearly identical: featuring local landmarks
: Use a tool like WinRAR or 7-Zip to unzip the folder.
Typical contents: