The existing taxation structure for corporates with a 22 per cent tax is "very reasonable" when compared to an economy of the size of India and hence the concessional tax regime which was in force for four years for new manufacturing units was not extended beyond March 2024, Revenue Secretary Sanjay Malhotra said. In an interview with PTI, Malhotra said the Interim Budget 2024-25 provides for continuity in taxation regime and the benefits given to taxpayers in the last years are showing results in the form of huge buoyancy in personal income tax.