January 2, The cards that don't have the chip-based security have been phased out and will no longer let you withdraw cash. Chip-based cards, banks in India can offer better protection against card and bank fraud. Come January 1 and a lot of debit or credit cards are going to stop working in India. This applies on both debit and credit card.
What is the magnetic strip on cards
How does a magnetic stripe on the back of a credit card work? | HowStuffWorks
These cards use magnetism, which are tiny particles of iron, in order to store information. Magnetic strips were first introduced in in the US as a government security feature. Magnetic strip explained Credit and debit cards are the most widely used tool for making online payments for goods and services. The magnetic strip at the back of cards is a huge factor in enabling individuals and business professionals to utilize this form of payment in their everyday personal and work life.
Licking, plastic bagging and other credit card secrets
Definitions Magnetic Strip - Computer Definition Though most adults have plastic credit cards or debit cards that they use for purchasing goods and services, few likely know how the magnetic strip on the back of the card works. The magnetic strip actually comprises very small iron-based magnetic particles in a plastic-like film. Each particle is a tiny bar magnet designed so that the magnetic strip can be written in either a north pole— or a south pole—direction. They must be one or the other. Each track holds a specific number of characters with defined functions.
Why would a cashier lick your credit card? Other equally baffled cardholders beg to know why applying Scotch tape to the magnetic mag stripe, encasing the card in a plastic baggie, rubbing the card on clothing, or wrapping their plastic in a dollar bill or a register receipt magically enabled the cashier to complete their transaction. As any cashier who has ever been saddled with an older or balky point-of-sale POS terminal will attest, some or all of these techniques can turn a rejected card into an accepted card.