Meaning of (गुणज्ञ या परीक्षक) gunajna/parikshak in english
As noun :
connoisseur Ex:  It is a great connoisseur of tables
Suggested : a person who is especially competent to pass critical judgments in an art , particularly one of the fine arts, or in matters of taste
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(गुणज्ञ या परीक्षक) gunajna/parikshak
can be used as noun.. No of characters: 17 including consonants matras.
Transliteration :
guNaj~na/pariikShaka