Mutuation, is the entry in the property records, maintained by the Government. It gives the name of the person who is the owner of the property along with other essential details, as like, wot is total area of the land, ancestral or purchased, residential or commercial, etc.
Any land has to have a mutuation entry. It is essential for giving the real owner the property title. And thus, is essential document for resale or purchase of any property. Mututation entries are essential to discover whether the property had a clear title.
Every piece of land shall definitely have a previous owner and legal record. You got to check that record, through search,and, thereafter, if u have purchased the property, u shall be required to see whether it had a clear title before. And get ur mutation enteries updated at sub-registrar office.
As far as negative implications of properties without updated mututations are concerned , it shall give u lack of clear title to ur property. This can create legal complications incase if u want to resale the property if the said property belongs to u or if u have purchased it and wants to resale it in future.
Hope ur queries are satisfied.