We have a joint family, and jointly own a big ancestral property scattered in different locations. But some property has been fraudulently sold without informing us, and we are not yet sure, as documentation part is not over legally. As we live outside India, it was not possible for us to move to India and investigate this story. I searched for personal detective services and got connected with National Detectives, they solved our doubts and problems within flat 15 days, thanks, we are defensive now, and have moved a precautionary application with Local Authorities regarding any further developments on property part.