There are 2 different groups for VITEEE based on the stream your son is appearing to study for. And the fee structure for both Groups is different. And it doesn't mention a special fee structure for OCI card holders. Now it isn't clear what course your son wants to study. So please visit our page at: https://engineering.careers360.com/articles/viteee-fee-structure for the exact fee structure. And the fees for OCI card holders might change from Institution to Institutions.