How much can housing societies charge as transfer charges, as per the law

The government of Maharashtra recently increased the stamp duty inter alia for sale, gift and transfer, by 1% and there are possibilities of further hikes in stamp duty and registration charges looming. However, an uncertainty that plagues flat owners and purchasers, lies a little closer to home – the levy of transfer charges by a cooperative housing society (society), on the sale and transfer of shares and rights to the flats in a building.