This discussion addresses a situation where a property sale deed was executed in 2005, but the mutation (Intaqal) was not completed due to a lack of knowledge. The original seller is now refusing to complete the mutation and is demanding further payment. Advice suggests that mutation is typically the responsibility of revenue authorities and does not invalidate the legal transfer of ownership. The buyer, holding a registered sale deed, can apply to the revenue department for mutation, potentially without the seller's presence if necessary.