Mr. B, aged 72 years, has earned rupees 75,00,000 out of his business. His ex-wife gifted him a car worth rupees 8 lakh. He spent a total of rupees 20 lakh during a family trip. He won a lottery of 16 lakh rupees. Out of happiness, he gifted his wife a diamond set worth rupees 450,000. He bought a life insurance policy and paid a premium of 55,000 annually. He paid tuition fees for his daughter amounting to rupees 50,000. He invested rupees 80,000 in PPF. One of his existing life insurance policies matured, and he received a total of rupees 35 lakh. Seeing his health conditions, the doctor advised him to undergo a medical test costing rupees 7,000, after which he bought health insurance for rupees 28,000. Calculate his taxable income and tax liability.