A ₹5-crore retirement corpus could incur up to ₹1 crore in taxes if withdrawals aren't planned efficiently, Moneycontrol reported. Opting for tax-efficient options like arbitrage or equity-oriented funds instead of fixed deposits can lead to higher tax savings. Over 20 years, taxes on fixed deposits may reach about ₹1.25 crore, compared to roughly ₹87 lakh with structured withdrawals.