Prajna is different name and sounds good

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Medha is also different but in future her classmates should not tease her asking - are you medhai so kept like that? There are chances for friends to tease her !
My opinion is always we should choose a name so that in future our kid's friends or her friends who are boys(main teasers of the world) will not tease like..,
I have seen many of my friends get teased for their names(they cant even blame their parents also sometimes) !!