Remedy for the denial of motion to intervene

The remedy of the aggrieved party is appeal. The allowance or disallowance of a motion to intervene is addressed to the sound discretion of the court hearing the case. This discretion, once exercised, is not reviewable by certiorari or mandamus, save in instances where such discretion is exercised in an arbitrary or capricious manner. (Gallego vs. Galang, G.R. No. 130228, July 27, 2004)