▁In ▁ 2 0 0 7 , ▁fifty ▁trib als ▁who ▁res ide ▁at ▁Kar att up ath i ▁settlement , ▁close ▁to ▁the ▁res er voir , ▁ ▁en rolled ▁themselves ▁as ▁members ▁of ▁the ▁society ▁and ▁eight ▁of ▁them ▁have ▁received ▁a ▁fish ing ▁lic ence . ▁ ▁Cro cod iles ▁▁ ▁The ▁largest ▁wild ▁bre eding ▁population ▁of ▁cro cod iles ▁in ▁South ▁India ▁live ▁in ▁the ▁res er voir , ▁and ▁in ▁the ▁Ch inn ar , ▁Then nar ▁and ▁P amb ar ▁rivers ▁that ▁d rain ▁into ▁it . ▁These ▁broad - sn out ed ▁m ug ger ▁cro cod iles , ▁also ▁known ▁as ▁mar sh ▁cro cod iles ▁and ▁Pers ian ▁cro cod iles , ▁are ▁the ▁most ▁common ▁and ▁w ides p read ▁of ▁the ▁three ▁species ▁of ▁cro cod iles ▁found ▁in ▁India . ▁They ▁eat ▁fish , ▁other ▁re pt iles , ▁small ▁and ▁large ▁m amm als ▁and ▁are ▁sometimes ▁dangerous ▁to ▁humans . ▁Their ▁total ▁wild ▁population ▁here ▁is ▁currently ▁estimated ▁to ▁be ▁ 6 0 ▁adult s ▁and ▁ 3 7 ▁sub - ad ult s . ▁Other ▁fish ▁pred ators ▁here ▁include : ▁Oriental ▁small - cla wed ▁ot ters , ▁Indian ▁c orm or ants ▁and ▁Indian ▁f lap - sh elled ▁t urt les . ▁ ▁The ▁Am ar av ath i ▁S agar ▁Cro cod ile ▁Farm , ▁established ▁in ▁ 1 9 7 6 , ▁the ▁largest ▁cro cod ile ▁nur ser y ▁in ▁India