You can purchase items and covert the amount in to emis.
With credit card you can travel anywhere in the world with a less amount of money you need to carry.
There are some credit cards which allows you to withdraw interest free money from atm for 45-60 days.
Some of the credit cards also provide you personal accidental insurance as well as travel insurance also makes then attractive.
It also helps to improve your credit score. If you know how to use credit card, pay bills on time within the credit limit. This will help improve your credit score which helps you to get loan easily in future.
You do not have to carry a lot of money if you use a credit card.
You can use your credit card to get experience like Lounge access in airport and railway platforms.