@Shilpi:
IGST ActSection 10(1)(b) merely states principal place of business. There is no further qualification that the principal place of business should be in India and not outside India
CGST Act definition of principal place of business merely states that place of business for which certificate of registration is granted. Again there is no qualification in India
CGST Act provides for registration of Non resident taxable person, in this case clearly such person has no place of business or residence in India.
Undoubtedly, in case 1 the goods are neither physically exported or imported into India. therefore Section 10 of IGST Act can be said to be applicable to case 1.
If a harmonious reading is to be adopted then even case 1 can be covered under 10(1)(b) - subject to the non resident taxable person obtaining registration under GST.
Can this argument be countered?