Select the INCORRECTLY spelt word.

Correct option is D

Option (d) is the incorrectly spelt word.
Correct spelling is: Exploitation – the action of using someone or something unfairly for one’s advantage. (शोषण)
Example: The exploitation of workers in factories is a serious concern.
Meanings of all the given options:
· (a) Immigration: Movement into a country to live (आप्रवास)
· (b) Administrator: One who manages operations (प्रशासक)
· (c) Admission: Entry or confession (प्रवेश / स्वीकारोक्ति)
· (d) Exploistation: Misspelling of "Exploitation"