The Chief Minister was in his constituency to attended various programmes and later went to a shop near the Karnal bus stand to order for tea.
After taking the tea, he took out his mobile phone and transferred money to the shopkeeper's account using an e-wallet, an official spokesman said.
Khattar also asked the shopkeeper to educate others about online transaction as he advocated the benefits of cashless transactions by using debit card, e-wallet and other modes of e-payment.
After the Centre's November 8 demonetisation move, the BJP government has been running an awareness campaign to promote digital mode of payment or cashless transaction.