1. The first 2 numbers - District Code. 64 districts have different codes. This code is 26 for Dhaka. 2. The next 1 number - this is the RMO code. • For City Corporation - 9 • Cantonment - 5 • Municipality - 2 • Rural Area - 1 বাইরে Out of Municipality Urban Area - 3 • Other - 4 3. Next 2 Number - It is Upazila or Thana Code 4. Next 2 Number - It is Union ( For village) or word code (for municipality or city corporation) 5. Last 7 numbers - This is the form number that you filled in the form when you used the ID card. At present, 16-digit ID card is being given again, the first 4 digits of which are birth year!