I reuploded my signature after getting msg from NTA but after that i read that signature should have particular kb size.
You will be notified asking you to change the scanned image.
Dear Vipul, January 31st is the last date for the correction window. We would suggest you to wait to check if you would hear from them again. If you receive a notification from them regarding uploading another image, you can change the scanned image. Now that you have uploaded the image, you will not be able to make any changes until you are notified.