respect of the signature of one namely, Sk. Samser Ali and learned court obtained specimen signature of Sk. Samser Ali in open court and as per order no. 77 dated 8.3.1996, the court below had sent the signature of Sk. Samser Ali in the said Ekrar Patra deed but along with specimen signature, before hand writing expert. The petitioners submit that before sending the specimen signature of Sk. Samser Ali in Ekrar Patra deed, anybody on behalf of the defendant has tampered the signature of Sk. Samser Ali in the Ekrar Patra deed by wooden pencil and as such when it was sent for expert opinion, the hand writing expert reported that no opinion could be formed as the signature in the Ekrar Patra deed has been tampered by putting mark over the same with the help of wooden pencil.