The stamp duty is the fee charged by the state governments to validate your property registration. This duty is calculated as a percentage of the property's value. In India, the stamp duty charged is generally in the range of 5%-7% of property's value. Also, in some states, women property owners get concessions on stamp duty. For example: In Delhi, if the owner is a woman, the stamp duty is just 4%, as compared to 6% if the owner is a man.