Yes there was lot of confusion but now it has been finally clarified by Supreme Court in his judgement Prakash Vs Phulavathi & others. So why we need the division of the property.
In this case there was a division within the family but it was not through the way of registration. It was only on the records of Municipal Corporation and Katha was transfered. In Hindus division use to happen in this way in families.
Below is the para from Prakash Vs Phulavathi & others judgement:
" Accordingly, we hold that the rights under the amendment are applicable to living daughters of living coparceners as on 9th September, 2005 irrespective of when such daughters are born. Disposition or alienation including partitions which may have taken place before 20th December, 2004 as per law pplicable prior to the said date will remain unaffected. Any transaction of partition effected thereafter will be governed by the Explanation"