Over the years, the government has provided tax incentives for companies investing in research and development. Since 2016, the policy has seen an overhaul, with some older incentives withdrawn while new ones being introduced. That year, the government launched the patent box regime and tax holidays for innovation-based start-ups. It also reduced income-tax weighted deduction on R&D expenses from 200% to 150%, which was further reduced to 100% in 2020. Recently, the Union Budget 2022–23 saw the withdrawal of a few customs-duty exemptions for R&D. India has seen relatively low investment in R&D, which calls for policy changes. However, the effi cacy of some of these recent changes is questionable.