It was a bad experience booking tickets from redbus.
I did not get the boarding location information. When I contacted redbus call support, they were not very helpful.
They said that I would get the message half an hour before the boarding time.
but I did not get any information. There are two bus stations in Ghaziabad, old bus stand and new bus stand, at least they could have told me which bus station I need to go. Instead they told me to go on both bus stations and check on enquiry and the two bus stations are 4-5 kms apart. luckily I caught the bus. but the experience was really bad.