Meaning of niji shikshak in english
Interpreting niji shikshak - निजी शिक्षक
As noun :
tutor Ex:  He gave a tutor to his son
Suggested : a person employed to instruct another in some branch or branches of learning, especially a private instructor
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niji shikshak
can be used as noun.. No of characters: 11 including consonants matras.
Transliteration :
nijii shikShaka