The income-tax department has found more than 500 "actionable" cases related to undisclosed immovable properties held by Indians in Dubai and raids conducted in Delhi alone have discovered evidence of unaccounted transactions worth more than Rs 700 crore, people in the know told ET. The Delhi investigation wing of the department has carried out more than a dozen searches and found evidence about 43 undisclosed immovable properties in Dubai, said a tax official. "The figure of the suspected evasion just in Delhi is over Rs 700 crore. Since the investigation is pan India, this amount is only going to go up. We suspect this to run into a few thousand crores," added the official. Recently, Germany shared with India information about properties owned by Indians in the Middle East under the 'Spontaneous Exchange of Information' mechanism of the Double Taxation Avoidance Agreement between the two countries. The information included details of properties owned by more than a thousand Indians.