With the surge of cases during the second wave of COVID-19, India faced a number of Mucormycosis cases, a rare but potentially fatal fungal infection, caused by the mucormycetes. The increased prevalence of Mucormycosis among COVID-19 patients may be associated with increased use of steroids, or the possible immunocompromised state caused by SARS-CoV2 or co-existing conditions such as Diabetes Mellitus. Presenting a case of post COVID-19 Sino-alveolar Mucormycosis infection where the patient had been tested positive for COVID-19 with superimposed Diabetes Mellitus, thus treated according to the persisting protocols. Following recovery, he developed multiple abscess and mild pain in left maxillary region. A diagnosis of Mucormycosis was established after Contrast Enhanced Computed Tomography(CECT) and cytology. Management was done with surgical debridement and antifungal therapy. Patient recovered and was discharged from hospital after 10 days.