Tech gift card or device (₹2000–10000)
An Amazon, Flipkart, or Croma card if he's eyeing something specific, or a direct gift — boAt or Noise earbuds, a smartwatch, a Kindle Paperwhite.
Bhai Dooj runs slightly higher-budget than Rakhi because it comes right after Diwali spending norms — the budget unlocks tech that actually lands.