The revision petitioners are the defendants in O.S.No.127 of 2007 on the file of the Court of the Principal Junior Civil Judge, Yellamanchili. The respondents herein filed the said suit seeking a decree for perpetual injunction restraining the defendants from interfering with the possession and enjoyment of the plaintiffs in respect of the suit schedule property. While the suit was coming up for further evidence of the defendants, they filed I.A.No.1087 of 2012 under Order 16 Rule 1 of C.P.C. with a prayer to issue summons to two witnesses named therein for the purpose of giving evidence about the possession of the plaint schedule property. The said application was dismissed by the Court below by order dated 4.1.2013 and aggrieved by the same the present Civil Revision Petition is filed.