For missing of documents of immovable properties, at the place of missing of documents you have to lodge complaint at concerned area police station / through Mee seva at Telangana area along with challan to get certificate of missing of documents and you have to publish public notice on missing of documents in any news paper to cover areas of properties and at the place of missing documents. With this certificate of missing of documents and published public notice in news paper you can sale your properties.You can write these details in sale deed also.Further in case of more clarity you requaired, you can take declaration of ownership decree from court by filling suit for declaration of ownership in the jurisdiction of court where property is situated or one of area of any one property among total properties properties.