Question . My birth certificate is incomplete. Do I need to provide anything else?
If a birth certificate is incomplete, it is necessary to supply the details through other documents. In some countries, such as India, it is common for the birth to be registered prior to the naming of the child. Thus, birth certificates may not refer to an individual by name.
 
In such cases, the birth certificate should be provided to the USCIS along with other, secondary evidence to establish that the certificate belongs to the particular individual who is seeking immigration benefits. No nonavailability certificate is needed, as the birth certificate is available, it just does not have all the information filled out.