copy of regn book, cnic of the person whose name is on regn book - Rs. 200 at RYK Excise office and you will get an update. - if the file is returned the excise office print out will have the date of file return. Get hold of previous owner in case it is missing. Take him to task if he mess up file an FIR.
either you are running a stolen tampered car or there is another stolen car somewhere in Pakistan which is tamprered and having the original file.