2. Whether disease is dengue or of any other category is irrelevant. There are no such conditions of 2 years for reimbursement so far as I understand. Such condition can be in respect of long term diseases. In respect of general illness, only condition appears to be that the insured person or covered employee must be covered under said scheme and must possess Permanent Identity Card/TIC which may also contain the names of his family members for which treatment is to be obtained.
3. Therefore, it will be more better to contact the appropriate ESIS dispensary as well as ESIC Branch Office to which the insured person is attached.
From India, Noida