Please tell me about the authenticity of belief of evil eye in our religion. And how to combat it like any dua or charity?
In subcontinent we call it “nazar” and remove it by chillies/egg/water. I am quite sure this way would not be islamic. Please guide me

Yes the evil eye does exist. The Prophet used to protect Imam Hassan and Imam Hussayn by reciting Surah Falaq and Naas. Chili and eggs don’t protect from evil eye, God protects through dua and Quran and sadaqa. Ayatul Kursi is good.