Save 70% on flight tickets using credit card

Most people in India don't even know how can you save money on flights using credit cards. you can get tickets for 70% lesser. I use an HDFC credit card and I've been accumulating points now to get started even doing all expenses using credit cards so that I can get good chunk of points. It has a rewards website. It's called smart buy, you just go on it and you purchase flight tickets. You can pay the 70% of the value of the ticket in point you can accumulate these points from regular spending. I pay my rent on my credit card, I get five points for every 150 i spend. So that means if I want to accumulate 5000 rupees I have to spend one lakh 50,000 rupees, which is a lot of money so you can just pay your bills on time. credit cards are great but if you default then obviously becomes a problem