Kalingi
The river Kalingi is one of the East flowing rivers in Andhra Pradesh. It originates near Kalahasti in Andhra Pradesh and drains completely in Andhra Pradesh and joins Pulicat lake after Sulurpet. The catchment area of Kalingi river is 5,927 Sq.Km and the length is 76 Km. The important tributary is Kalleru river which joins Kalingi river after Sulurpet town.