Can any one help to write code for this ?

recursive function to count total number of consonants in it.
Your function should return the count of consonants.

I rarely see others write such today since it's the old "letter frequency" problem which we can find over 100 solutions at https://rosettacode.org/wiki/Letter_frequency

There's other subsets there under "Other tasks related to string operations:"

In other words, something of a well worn function done to perfection.

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