Get all the information about applying for credit card and the credit card process here.

2.  A credit card is a payment card issued to users as a system of
payment.
 It allows cardholder to pay for goods and services based on promise
to pay for them.
 The issuer of the card grants credit to the consumer from which the
consumer can make payment to a merchant.

3. There are 2 way to get credit card
 Applying to the bank for credit card
 Applying online
But first the customer must be account holder in respective bank to
get credit card benefit.

4. Step 1
 Select the type of credit card you want.
Step 2
 Fill in details required to process and verification. Click on submit
and you are done.

5. Applying Online Traditional Way
Can be done from anywhere anytime Need to visit nearest branch to apply
Two step procedure Requires multiple steps
Time saving Time consuming
No paper work involved Lots of paper work required

6. Signup Bonuses
Cash Back
Investment Rewards
Loyalty Points
Universal Acceptance
Safety
Building Credit
Grace Period

7. Reference:
1. www.axisbank.com
2. www.investopedia.com
3. www.wikipedia.com