S. 10A : Free trade zone-Separate accounts need not be maintained- Undertaking starting manufacture on or after 1-4-1995 must have 75 Per Cent. of sales attributed to export-Apportionment of expenses is held to be reasonable-Sub-contractors giving software support to assessee on basis of foreign inward remittance-Claim by sub-contractors would not affect assessee’s claim. [S. 80HHE]