Shares of Aurobindo Pharma gained 4 per cent to Rs 1,003.75 on the BSE in the intra-day deal on Friday after the drug firm announced transfer of business undertaking comprised in Unit·4, on a going concern basis, to Eugia Pharma Specialities, a wholly owned subsidiary of the company. The transfer of the business undertaking will be done for a lumpsum consideration of Rs 876 crore.