Regd benefit of 2005 amendment act

When daughter has relinquished her share in favour of son (her borther) what is dispute / issue / problem left over for consideration and obligation of experts on this platform ??? Please clarify 

No,once daughter has relinqueshed her rights and share in property by registered release deed, she is estopped to claim her rights and share again in future.

This is a partition suit and partition has not yet effected. Only preliminary decree has been passed deciding share of all issues viz. 3-sons and 4-daughters. 4-daughters have relinquished their rights in favour of 1-brother alone. i.e. They have transferred their right/share in the undivided properties. Hence the question whether that brother can claim benefit under 2005 Amendment?, as he is stepping in his sisters' shoes now.