That must be the case. Even the prints have a minor shift, only visible on close inspection. I will check. Thing is that I have to refer youtube videos for that. But not many explains things in detail.

Sorry I had an emergency and was away. My bed level wasnt good I think. I did some leveling and all again now the prints are fine. Yet still minor (negligible) issues with the print. My nozzle may be not that good now. Its old. But since the prints are fine now so Im using It.

Thanks. I will check it. I thought I did the leveling correctly prior to printing.