export Refund

GURUPAL SWAMI (62 Points)

01 January 2018  
does anybody got Export Igst refund , I have applied online in my gst portal ARN no generated I have went to gst officer to claim my refund , in ARN generated form there is no Authority mentioned to claim where and who's jurisdiction , my GST tin is under Tamil Nadu State tax department
please guide any well known person on this subject
my gst officer told us to wait