The query requires the identification of the incorrectly matched Sufi-region pair. An analysis of the provided pairs is as follows:
1. Shaikh Muinuddin Sijzi – Ajmer:
This is an accurate pairing. Shaikh Muinuddin Sijzi, a prominent Sufi saint, has strong ties to Ajmer, where his tomb resides.
2. Khwaja Qutbuddin Bakhtiyar Kaki – Delhi:
This pairing is also accurate. Khwaja Qutbuddin Bakhtiyar Kaki was a significant Sufi saint who resided in Delhi.
3. Shaikh Fariduddin Ganj-i Shakar – Ajodhan (Pakistan):
This match is correct. Shaikh Fariduddin Ganj-i Shakar, also recognized as Baba Farid, is linked to Ajodhan, a location now within Pakistan.
4. Shaikh Nizamuddin Auliya – Agra:
This pairing is erroneous. Shaikh Nizamuddin Auliya, a highly renowned Sufi saint in India, is primarily connected with Delhi, not Agra. His shrine is situated in Delhi.
Determination:
Consequently, the correct answer is (D), as Shaikh Nizamuddin Auliya is erroneously associated with Agra. His actual affiliation is with Delhi.