There is no need to carry cash in wallet because their is a very beautiful solution without keep cash in their wallet and the solution is paytm nowadays everybody have their smartphone and payment is the website and application for their fon which a person can easily use in their phone we can buy everything in the market only scan bar code or phone number and enter amount for the purpose of buy or sale. Paytm has everything like flight tickets, bus or railway tickets with negotiable prices. During demonization paytm was the only thing which helped to everyone without cash everyone doing sale and purchase.