Thank you for replying. I saw all these signs linked to my account but these all happened in past and my account was banned yesterday. I am not sure for any plagiarism but if these were the reasons of my account ban, why didn't it happen at the right time ? it is happening now after a year !
Most times moderators are too busy to fine out your offenses but once they can lay hold of it they do they job, it doesn't matter when and how the offense was committed once the moderators have any evidence against you they carry out their job. So you have to let go and take it as one of those things in life.