A property owner in Pune accidentally had the unit numbers swapped on their echallan documents for two adjacent commercial shops, Unit 36 and Unit 37. While all other sale documents correctly identify the units, the echallan has the numbers reversed. The owner uses both units for their business and is seeking advice on whether a correction deed is necessary to prevent potential problems, especially if they decide to sell one of the units in the future. Experts advise correcting the documents to ensure a marketable title and avoid future legal complications.