Please do not just change your OP without indicating (in your OP) what you've changed.
How to handle this situation is described in "How do I change/delete my post?" (which explains why as well as how).
Update:
While I indicated "OP" above (as that was applicable to this specific case), the information about changing the content of your post applies to any node you write.
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Culprit was, I was using $ref{$k} instead of $ref->{$k}
Nope. Unless there is more context than you are telling us, the culprit is using a hash reference instead of a hash.
References are fine where they are needed, but require needless extra syntax where a simple variable will suffice.
True laziness is hard work
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