Daman and Diu. Union Territory of Daman and Diu comprises two districts namely Daman and Diu. Both Districts are situated on western coast of India at a distance of about 700 kms. Daman is the head Quarter of this U.T. Daman is on main land near southern portion of Gujarat State. Vapi is the nearest Railway Station (13 kms) which is on Western Railway between Mumbai and Surat. Vapi is 167 kms from Mumbai Central and 95 kms from Surat.