Code of Civil Procedure, 1908
(1) Save where otherwise expressly provided in the body of this Code or by any other law for the time being in force, an appeal shall lie to the High Court from every decree passed in appeal by any Court subordinate to a High Court, on any of the following grounds, namely:-
(a) the decision being contrary to law or to some usage having the force of law;
(b) the decision having failed to determine some material issue of law or usage having the force of law;
(c) a substantial error or defect in the procedure provided by this Code or by any other law for the time being in force, which may possibly have produced error or defect in the decision of the case upon the merits.
(2) An appeal may lie under this section from an appellate decree passed ex parse.