Yes . It is very useful and helpful too. Because money directly transfers from our account to particular account. It saves money as well as time. It is at our fingertips . There will be no corruption as money doesnot change from hand to hand and money transfers in net.
Yes it is very true that E-ticketing has been effective in reducing corruption  as it can be done by sitting in our home without any fear of standing in a long line.By this method there is no fear of taking money by anyone, Also from this we can save our precious time . As time is very precious we have to save it.