Adoption/ natural mother has not deposed in the case/

Sir(s) My case is that, I am an adopted son of Mr and Mrs X who has a daughter whose age was 20 at the time of adoption. My adoptive parents adopted me on the 5th day of my birth and did all the rituals and other Hindu formalities of adoption like giving and taking ceremony on the first birth day of mine and done a registered deed of acknowledgement of adoption when I was 28 years. My adoptive father has some jagiri lands which was settled in his name after passing of OEA Act. it be mentioned here that those lands were rent free lands. after settlement it was settled in his name and rent was fixed. As it became his personal and self acquired property he has gifted some reasonable portion of his property to me which has been acted upon. Now the daughter has challenged the adoption. in the trial court I have won the case. Adoption is declared valid and also the gift. My adoptive father and natural father have submitted the WS admitting the fact of adoption. During the process of trial the adoptive father passed away. The adoptive mother deposed in favour of adoption and gift also. So the trial court ordered accordingly. However, the daughter challenged the order in appeal stating about the absence of natural parents in the duck and also stated that the lands are ancestral. How can I move further Plz. advice. Niranjan Nayak