Which of the following is not a mode of execution as provided under s.51 of CPC?

As per CPC- S. 51. Powers of Court to enforce execution. —Subject to such conditions and limitations as may be prescribed, the Court may, on the application of the decree-holder, order execution of the decree— (a) by delivery of any property specifically decreed; (b) by attachment and sale or by the sale without attachment of any property; (c) by arrest and detention in prison [for such period not exceeding the period specified in section 58, where arrest and detention is permissible under that section]; (d) by appointing a receiver; or (e) in such other manner as the nature of the relief granted may require: