Stamp duty for legal heir certificate in telengana

Hi, what is the stamp duty for legal heir certificate in telengana? I heard it�s 1% of the property value. But what if this is a very large number in Crores. It becomes difficult to pay the sum out of their pockets...is there a maximum limit? Also if the person had property in different states but had permanent residential address in telengana, would the same legal heir certificate apply to all the properties and would the stamp duty have to be paid on value of out-of-state properties in telengana as well? Thanks