5.When a deduction under this section is allowed, no deduction shall be allowed in relation to such profits under any other provisions of the Act in the same or any other assessment year. 6.This deduction is extended to an assessee being a supporting software developer who has developed and sold computer software to an exporting company provided that such company issues a certificate for the amount of export duly certified by its auditor. If the business does not consist exclusively of selling such software to one or more exporting companies,then the amount which bears to the profits of the business,the same proportion as the turnover in respect of the sales to the respective exporting company bears to the total turnover of such business. In case of the exporting company giving a deduction to a supporting software developer ,the amount of deduction to the exporting company shall be reduced by such amount which bears to the total profits derived by it from exports,the proportion as the amount of export turnover specified in the said certificate bears to the total export turnover of the exporting company. The term computer software has been enlarged to include also any customerised electronic data.
Tax holiday is in lieu of all other concessions available in the Income Tax Act.
The assessee can choose either the complete tax holiday under the above sections or all other tax concessions available under the Act.