Services to SEZ

Either u can collect igst from sez dealer and claim refund later on or u file LUT first and then make supply without GST

is LUT is compulsory to apply?

pay tax , take refund 

or 

take lut 

Please suggest...

Should i collect IGST amount From SEZ dealer?
- No. Bcoz, He is under Exemption in his Inwards. Supplier will be Charge IGST in his Sales Bill and Also Pay Tax himself. SEZ dealer can't give Tax...

and

LUT is compulsory
- If You want supply 0 rate then You can apply LUT/BOND under GST then You can billing 0 tax...
If not then You ll pay GST on Your own pocket.