News India Live, Digital Desk: It is being claimed on social media and some websites that if you have a ₹ 10 note on which the number ‘786’ is written or it has a special serial number, then you can sell it for lakhs on online platforms. But the truth behind this “lottery” can be quite risky.1. Official warning from the Reserve Bank of India (RBI) RBI has repeatedly issued public notices cautioning people: No official involvement: RBI does not get involved in any case of buying and selling of old bank notes or coins. Be careful: The central bank has clarified that it has not authorized any institution, company or individual for such transactions. Method of fraud: Fraudsters often use the name or logo of RBI to deceive people. They ask for money in the name of ‘registration fee’, ‘file charge’ or ‘GST’. Remember, the real buyer will never ask you for money.2. How is a note’s “worth” determined? In the world of numismatics, a note’s value depends on its rarity, not what a website claims: Fancy numbers: like 786786, 000001, or 123456. Misprint: A specific mistake made during printing. Old Governor’s Signature: British era or just after independence Note.Truth: Such notes can be worth thousands among collectors, but finding a large amount like ₹4 lakh is extremely rare and often elusive.3. Process to sell online (if the note is really rare) If you have a really rare note, then these are the safe ways to sell it:Coin Exhibitions: Go to ‘Currency Exhibitions’ held in big cities, where real experts and buyers meet.Online Marketplaces: Place your ad on sites like OLX, Quikr or eBay, but do not give even a single rupee advance to anyone.Antique Dealers: Contact certified antique dealers.4. Identify these 4 ‘Red Flags’ (Scam Alert) If someone asks you for money for ‘RBI Clearance Certificate’. If the buyer asks you to pay tax by sending a photo of the cheque. If you get a call from an unknown number and he introduces himself as a government official. If you are asked for a photo of Aadhaar or PAN card before buying the note.