Yes it is possible to correct without extra big procedure. If it is showing wrong details then it is required to apply fresh one, but important to do here is that in EC application property schedule has to be written properly i.e. plot number, measurement, boundaries & property address as per the sale deed or any title deed (if it is owned by sale, gift, partition or release etc it is required to mention registered document number, Volume, CD number etc details) EC is a crucial document also common & simple document.