A 32 year old Indian male patient presented with chief complaints of a high fever, erythema on ear, severe polyarthritic joint pains & swelling, non pitting pedal oedema, facial puffiness and itching for past four days. He had no significant past medical and drug history and was serologically confirmed to have Chikungunya. Oral cavity inspection revealed whitish non erythematous pseudo membranous plaques on the hard palate, buccal surface of cheek and the floor of the mouth which was later microbiologically confirmed as Candidiasis. He tested negative for HIV and had leucopenia with severe CD4 T-lymphocytopenia. This is the first report of an opportunistic infection with CD4 T-lymphocytopaenia in Chikungunya fever.