Complex sentence: On the Mahamaham day people start with praying these shivan temples and start dips in the 20 wells and go to kumbeswarar Temple and dip in the holy tank and finally in kaveri river to complete the process.
Split into simpler sentences: On the Mahamaham day people start with praying these Siva temples. This is continued by dips in the 20 wells, visit to Kumbeswarar Temple, dip in the holy tank and finally in Kaveri river to complete the process.