Mr. Sharma has a 5A meter in his house. He uses 5 CFL bulbs of 15 watt each for 4 hours and an electric heater of 1200 watt for 1 hour everyday. Find the cost of payment of the bill of a month at the rate of Rs 3 per unit up to 20 units, Rs 6.50 per unit from 21 to 30 units and Rs 8 from 31 to 50 units with Rs 75 service charge, if the payment is made on the 10th day of meter reading.​