FILE UPLOAD IN Nested Serializer

[narendra...@gmail.com]

I have a plain text field in Parent Table and should upload a file in child table and has a foreign key relation in both table. I cannot upload a file in nested serializer. I didn't get a file data in serializer create function. it take a data of parent serializer and delete the data of Nested Serializer. Can somebody help me to upload a file with nested serializer.