</s> ▁The ▁following ▁describes ▁the ▁population ▁of ▁towns ▁in ▁T amil ▁N adu , ▁India . ▁ ▁Urban ▁Administration ▁T amil ▁N adu , ▁the ▁ 1 1 th ▁largest ▁state ▁in ▁India ▁by ▁area . ▁As ▁of ▁ 2 0 1 9 , ▁the ▁state ▁has ▁ 3 8 ▁districts , ▁ 1 5 ▁municipal ▁corpor ations ▁and ▁ 1 4 6 ▁municipal ities . ▁On ▁ 1 4 ▁February ▁ 2 0 1 9 , ▁the ▁state ▁government ▁announced ▁in ▁the ▁Assembly ▁that ▁H os ur ▁and ▁N ager co il ▁will ▁be ▁upgrad ed ▁to ▁municipal ▁corpor ations . ▁Av adi ▁became ▁municipal ▁corpor ation ▁on ▁ 1 9 ▁June ▁ 2 0 1 9 . ▁ ▁Development al ▁administration ▁in ▁T amil ▁N adu ▁is ▁carried ▁out ▁by ▁Pan ch ay at ▁Un ions ▁( called ▁blocks ) ▁in ▁rural ▁areas . ▁ ▁These ▁pan ch ay at ▁un ions ▁have ▁a ▁set ▁of ▁pan ch ay at ▁villages ▁under ▁them . ▁ ▁In ▁urban ▁areas , ▁the ▁govern ance ▁is ▁done ▁by ▁municipal ▁corpor ations , ▁municipal ities ▁or ▁town ▁pan ch ay ats ▁based ▁on ▁the ▁size ▁of ▁the ▁town . ▁The ▁Re venue ▁divisions ▁and ▁Tal u ks ▁of ▁the ▁state . ▁These ▁administrative ▁units ▁are ▁class ified ▁based ▁on ▁the ▁district . ▁ ▁There ▁are ▁ 3 3 ▁districts ▁in ▁T amil ▁N adu ▁and ▁for ▁re venue ▁administration ▁purposes , ▁each ▁district ▁is ▁divided ▁into ▁divisions , ▁which ▁are ▁further ▁divided ▁to ▁Tal u