Credit Cards are known as electronic money. It was become popular in European countries many years ago. Because it gives a person power of spending money without worrying about the cash . Credit Cards is the pre approved loan given by banks, which works perfectly for banks also. To have a credit card, you need to apply to bank first and bank then checks yours liability and your account statement. And upon that they will provide you a credit card with certain limits, these limits are derived from your loyalty with bank and your spending power. Getting a credit card is not a simple process, but require many documents and verifications. 

The bad side of the credit cards is the free spending power you get. Before credit cards were in the market, you could spend money which you had in your account opr your pocket.So it ultimately limited your spending power and save your money also. But having a credit card in your pocket don't make you bother about the money you have. You only know the limit of the credit card and you start spending, because you don't need to care about the money right that time. And this how you spend more and more money. Also these days getting a credit card is very simple. and if you have a banks credit card, other banks will give you credit card without much verification.

The benifit of the bank is that, the more the people spent, more money they get from them.And credit card limits are in thousands so there is not much risks for banks. And if somebody fails sometime to pay the bill. Bank is always ready with the big amount of tax on that. and most of the peoples will pay the taxes.

The benifit of the consumer is that they get the spending power. Sometimes you have to spend money for some urgency and you dont have. That time credit cards can be life-saver. And you always get a 52 days time to pay the bill of credit card and also if you want you can convert the bill into easy EMI. Sometimes you get discounts on purchases like Standard Charterd gives 5% cash back on phone bills paid using the credit cards. 

So credit cards are not bad, but its power depends upon the person who use it. I dont use it because i dont like it. And also there is always internet credit card fraudes are running so you need to be aware while using credit cards.

There are sevaral options available in India for Credit cards like SBI, ICICI, PNB, HDFC, City Bank. Play safe and be wise.