I’m facing harassment from someone belonging to the Scheduled Tribe, and it’s based on my caste (I’m Scheduled Caste). I have proof of this. Can I file a complaint about this? I need to know quickly.

Yes, you can file a complaint. The Protection of Civil Rights Act, 1955, prohibits harassment based on caste and provides for penalties. You can file a complaint with the police or the National Commission for Scheduled Castes.