How does using credit or debit cards in ration shops be possible in rural areas?

How does using credit or debit cards in ration shops be possible in rural areas? <br /><br />Connect with Sathiyam TV online: http://sathiyam.tv<br /><br />Facebook: https://www.fb.com/SathiyamNEWS <br /><br />Twitter: https://twitter.com/MySathiyamTV <br /><br />Website: http://www.sathiyam.tv<br /><br />Google+: http://google.com/+SathiyamTV