Non regularization from old date

My father was appointed in up forest as a forester in 1981 in ad hoc basis. He continue his job as a responsible employee.in 1991 up goverment regularised many ad hoc as well as daily wages employees.but he was not regularised.he file a case in lucknow highcourt against up forest in 2002. His case number is 6340. In 2006 up forest regularised him. But regularization from 2006 is deprivation of his entire service benifits. Then we again go to court because he deserves to be regularised under old regulization act 1979. Non regularization under old date is resulting a torcher and harrasment on him.court order to us to make representsion to ccf up forest to passed an appropriate order. But up forest denied to do that. This was the matter of 2013. Then we again go for another advocate in lucknow but he did nothing. Now my father will retire in 2019. He is very depressed because he will not eligible for pendion after completing his job and all merits of his jobs is finished. All his colleagues are deputy ranger and ranger but he is a forester after 38 years of service. His service record is clear. What should we do .we live in uttarakhand.. Please help.