In India there is a (superstitious?) practice called Numerology, where people add the letters of their names and come up with a number. This number could be lucky or not. If it is an unlucky number, they add a letter to their names and change the number to change their luck. So you have spellings like Vijjay for Vijay or Shobhaa for Shobha.
I am not saying it does not work, but I don't believe in it.

Also in India in some communities a woman changes even her first name after marriage.


It is kind of freeing to have whole new name … a whole new start. Though, I doubt it makes you a different person. Perhaps it makes you want to make less mistakes.