If you want to see the original performance by Michael Douglas and Sharon Stone, it is best to stick to official platforms for the highest quality and safety:
Searching for Basic Instinct (1992) in Hindi can be confusing because while sequels and remakes exist in Hindi, the original movie was never officially dubbed in Hindi for its mainstream release. Status of Basic Instinct (1992) Hindi Dub Official Status: basic instinct hindi dubbed filmyzilla
The supposed Basic Instinct Hindi Dubbed file on Filmyzilla is usually: If you want to see the original performance