मेषे च गङ्गा, वृषभे च नर्मदा, युग्मे च वाणी, यमुना कुलीरे, गोदावरी सिंह गते च, कन्यांगते देवगुरौच कृष्णा, कावेरी तौल्यां, अलिताम्रपर्णी, चापे च सिंधु, मकरे च भद्रा, घटेगुरौ भीमरथी, प्रणीता मीनेगते, पुष्करमाहुरार्याः!
इति कदा कस्याः पुष्करं संभवतीति श्लोकः
The Krishna Pushkaram granthe, provides the reference of all the sacred rivers and their associated pushkara sambhava rasi. As per this Ganga takes the Mesha Rasi, Narmada takes the Rishbha, Wani is associated to Mithunam, Yamuna with Karkatakam, Godavari with Simha, Krishna with Kanya, Cauvery with Tula, Vrichikam with Tambiraparani, Sindhu with Dhanushu, Bhadravati with Makaram, Bhemarathi with Kumbham and Praneta (tributary of Godavari) with Meenam. Thus this slokam provides the reference of river and their associated rasi for pushkaram event.
As per this Slokam, Cauvery is associated with Tula rasi.
Cauvery Pushkaram is a festival of River Cauvery that normally occurs once in 12 years. This Pushkaram is observed for a period of 13 days from the time of entry of Jupiter into Tula rasi (Libra). Since this year the Jupiter (Brihaspathi) moves to Tula Rasi, it is marked as Cauvery Pushkaram.
This year the astrological movements make it rare such that , this event occurs only after next 144 years !
Hope you are all planning to take a dip in the River, If not, please do not miss this opportunity !