A 60 year old diabetic patient presents with extermely painful lesion in the external ear and otorrhea not responding to antibiotics. There is evidence of granulation type tissue in the external ear and bony erosion with facial nerve palsy is noted. The most likely diagnosis is-
Malignant Otitis Externa
Nasopharyngeal carcinoma
Chronic suppurative otitis media
Acute suppurative otitis media