mrdeepakrijal, your case sounds like a software problem, most likely caused by a sudden shutdown during updating. In the better case, it may only be some inconsistent packages. If you have rootsh installed, go to X-Terminal and type
If you don't have rootsh installed or the corruption as at the file system level (which is not uncommon if the device shuts down during writing to it), then you may have a bigger problem and may need to backup all your data and then reflash.