In the time of Demonetisation, Paytm is most popular online site. Even I use paytm many times. Its product is cheap as compare to other online sites. Product quality is good in lesser price and product delivered on time. This site gives many more services which are not given by other sites like Mobile recharge, Electricity bill/water bill etc. So thats why it is very useful site. My personal experience is when I used that site then it made me rely on online shopping. The product available on this site is so reliable and most important is Cash Back facility is also available and it comes to your wallet and by this cash back we can further transact. Allover this site is too good.