FPJ Exclusive: Mystifying tweaking of ready reckoner rates by MVA government File Image Mumbai: The Department of Registration and Stamps has substantially reduced or increased the ready reckoner (RR) rates in certain zones in Mumbai a few months after it came into effect from September 12. This has been done following clearance by the Inspector General of Registration (IGR). The department decision has been attacked by the opposition while some realty players admitted it would largely benefit their competitors. RR rates are the fare rates of immovable property, on the basis of which market value is calculated. As per the notification issued in the first week of December in Kanjurmarg, currently hogging the headlines over the Metro 3 carshed controversy, RR for residences has been reduced to Rs 1,24,320 per sq mt from Rs 1,52,350, for offices Rs 1,30,700 from Rs 1,60,450 per sq mt, for industry Rs 1,18 400 from Rs 1,44,510 per sq mt.