A homeowner in Kolkata, wife of an ex-serviceman, is enquiring about claiming a 25% exemption on housing property tax. The Kolkata Municipal Corporation Act allows for such an exemption for ex-servicemen or their families, provided they own no other property in West Bengal and reside in the property. To proceed, the individual needs to submit her husband's defence service documents to the Corporation Office and confirm if a council resolution for this exemption has been passed. The process for applying, whether online or offline, will involve submitting the relevant documentation.