Mutation of unregistered family settlement deed

Sir/ madam , i am the regident of punjab. my father written a family settlement deed in 2014 in which he was distributed regidencial as well as agriculture land in between all co sharers. we are 5 brothers and 1 sister. sister donot want any share from property and this has been written in the deed signed by her on the deed. all brothers get there unequal shares and they have no objection in this. the family settlement deed along with maps of houses and agriculture land was duly signed by my father(owner of the properety), all the co-sharer , my sister( who donot want any share), 2 witness, and the lawyer ( who write this deed in his presence). after this my father become ill and died in july 2015therefore we didnot get chance to registered it. in december 2016 we entered this deed in the records of patwari with the full consent of all the co sharer and my sister. but this deed is still pending in the records of revenue department and after so many years (in 2018), the revenue department is saying this deed is not acceptable as it is not come in records within time. but i get the information from somewhere that there are 3 years of time after the entry in the records of patwari, of mutation and this is the duty of the revenue department to make it done. sir/ madam, i want to know that is there any way to get it mutated in the revenue department or in the civil court. all the co-sharer are agreed to get it done. please suggest me with the suitable wayout.