Kollidam river is the branch river of Cauvery. Kollidam branches off from Cauvery at Mukkombu. Kallanai which is built by Karikala Chola is in Mukkombu. It is an ancient dam in the country. Cauvery gets splitted as 2 rivers from this dam onnwards.
Suresh Kumar R.
Engal Vazhvum Engal Valamum Mangaadha Tamizh Endru Sangae Muzhanku