GAMCA online appointment in Bangalore made simple. Book now for authentic medical tests required for GCC visa approval . The GAMCA India office, which has been renamed WAFID, operates the authorized medical centers where the candidates go for the GCC medical test. The test is meant to ascertain that the workers are physically fit and free of major infectious diseases. GAMCA means Gulf Approved Medical Centers Association. These are the GCC countries’ authorized networks of medical centers where the applicants shall undergo their medical tests.