IRCTC is the official site of railways for doing all the railway related transactions. As its the official one, I chose the site to be the best source for the railway ticket booking and catering.
The best part of this website is its trustworthiness.The worst part being that it took a lot of time for booking earlier. Now-a-days, it has become faster. It has many payment options like the paytm wallet, etc. Another improvement I have seen in the site is blocking agents for mass booking. Thus enabling the common user to book the tickets.
I almost use this site every week for booking my tickets to home every weekend. I have experienced the ease-of-use for this site. Now we can file the TDRs, book tickets, book food, etc without much problem.