Try to remain calm and deal with the situation logically
Knowingly circulating fake currency is a crime under Section 489C of the IPC
Identify the fake note by looking at distinctive features like watermark and color-shifting ink
Inform the security guard at the ATM about the fake currency you noticed
Hold up your fake notes in front of the CCTV camera for proof
Keep your transaction receipt handy and approach your bank to replace the fake currency
Banks have a responsibility towards replacing the fake currency as early as possible
If your bank refuses to replace the fake currency, you can file a complaint with the RBI