Which is the called as Dakshina Ganga (The Ganga river of the south)?

Godavari is known as Dakshin Ganga because Godavari is the largest Peninsular river while Ganga is the largest river in whole India. That's why it is compared to Ganga and it is in south.
Kaveri is known as Ganga of South India because it's flow is also like Ganga river and it is also having so many tributaries like Ganga.