The amendment of 2005 hindu succession act which provides that daughter after marriage shall be coparcener in the father huf even after marriage is applicable only prospectively not retrospective effect so if father died before 2005 then partition opened before that so daughter cannot claim her right in the HUF.a daughter can avail of the benefits granted by the amendment only if her father passed away after September 9, 2005. Also, the daughter is eligible to be a co-sharer only if the father and the daughter were alive on September 9, 2005
This position was cleared by supreme court in prakash vs phulwati.http://www.livelaw.in/law-on-equal-right-for-daughters-over-property-is-prospective-sc/