What is "oudlajan"

Oudlajan (Persian:عودلاجان) is a historic neighborhood in Tehran, Iran. The neighborhood is surrounded by Pamenar Street, Cyrus Street (Mostafa Khomeini), Cheragh Bargh (Amir Kabir) and BozarJomehr Street (15 Khordad). Oudlajan, in addition to Arg, Dolat, Sangelaj, Bazar and Chalmeidan, constituted the Old Tehran during the Naser Aldin Shah era. Old Oudlajan consisted of 2619 houses and 1146 shops and was one of the biggest and wealthiest neighborhoods in Tehran.