What is a PAN number in uppercase?

The upper case and lower case in pan number do not make any feel. It depends on you the way you write it. Btw most people write pan numbers in higher case. Uppercase characters are capital letters; lowercase characters are small letters. For example, field is in lowercase while field is in uppercase. The time period is a vestige of the days whilst typesetters kept capital letters in a container above the lowercase letters. A program that distinguishes between uppercase and lowercase is said to