Why DCC is a trap
- Merchant's processor sets the rate; typically 3–7% worse than Visa / Mastercard's interbank rate.
- Your bank may still apply forex markup on top (depending on issuer).
- You can't claim the conversion fee under "currency network rate" disclosures.
Always pay in local currency
If the terminal forces INR (some don't ask), insist on cancelling and retrying. If your card has a no-forex-markup feature (premium credit cards, Niyo Global etc.), local-currency mode lets you use the network rate directly.