(3)This section applies to the undertaking, if the sale proceeds of articles or things or computer software exported out of India are received in, or brought into, India by the assessee in convertible foreign exchange, within a period of six months from the end of the previous year or, within such further period as the competent authority may allow in this behalf.Explanation 1. - For the purposes of this sub-section, the expression "competent authority" means the Reserve Bank of India or such other authority as is authorised under any law for the time being in force for regulating payments and dealings in foreign exchange.Explanation 2. - The sale proceeds referred to in this sub-section shall be deemed to have been received in India where such sale proceeds are credited to a separate account maintained for the purpose by the assessee with any bank outside India with the approval of the Reserve Bank of India.] [Substituted by Act 10 of 2000, Section 6, for Section 10-A (w.e.f. 1.4.2001).]