For an individual filing his return upto AY 2022-23 with a total income of 25,00,000,
Under the Old Regime,
You can claim the deductions and hence reduce your tax liability.
Total Income = 25,00,000
Less: Deductions (1,50,000+1,50,000+50,000)
Therefore, total taxable income = 21,50,000
Hence tax liability = 4,57,500 (12,500+1,00,000+1,50,000+1,95,000) +4% Health and education cess
Under the New Regime,
You cannot claim any deductions but take the advantage of lower tax rates. Taxpayers can opt for the new tax regime when filing ITR on or before the due date.
So, total taxable income = 25,00,000
Hence tax liability = 4,87,500 (12,500+25,000+37,500+50,000+62,500+3,00,000) +4% Health and education cess
Therefore as per the situation mentioned by you, the old tax regime would be beneficial as the tax liability is less.
You can read more about the Difference Old Tax Regime vs New Tax Regime - Learn by Quicko.
However, as per Budget 2023 announced today, the slab rate for the new regime has been updated and shall be applicable for FY 2023-24/ AY 2024-25 onwards.
Hope this helps.