Explain the nexus approach recommended by OECD in BEPS Action Plan 5 which has been adopted in the Income-tax Act, 1961.

In India, the Finance Act, 2016 has introduced a concessional taxation regime for royalty income from patents for the purpose of promoting indigenous research and development and making India a global hub for research and development. The purpose of the concessional taxation regime is to encourage entities to retain and commercialise existing patents and for developing new innovative patented products. Further, this beneficial taxation regime will incentivise entities to locate the high-value jobs associated with the development, manufacture and exploitation of patents in India. The nexus approach has been recommended by the OECD under BEPS Action Plan 5. This approach requires attribution and taxation of income arising from exploitation of Intellectual property (IP) in the jurisdiction where substantial research and development (R & D) activities are undertaken instead of the jurisdiction of legal ownership. Accordingly, section 115BBF has been inserted in the Income-tax Act, 1961 to provide that where the total income of the eligible assessee (being a person resident in India who is the true and first inventor of the invention and whose name is entered in the patent register as the patentee in accordance with the Patents Act, 1970 and includes every such person, being the true and the first inventor of the invention, where more than one person is registered as patentee under Patents Act, 1970 in respect of that patent) includes any income by way of royalty in respect of a patent developed and registered in India, then such royalty shall be taxable at the rate of 10% (plus applicable surcharge and cess). For this purpose, developed means atleast 75% of the expenditure should be incurred in India by the eligible assessee for any invention in respect of which patent is granted under the Patents Act, 1970.