Prayer under o 12 r 6 cpc rejected. appeal or revision against it?

Prayer for Judgement on Admission under Order 12 Rule 6 was rejected by the Hon'ble High Court. Whether a revision or an appeal lies against it? I could only find one judgement- Koramall Rambullobh vs Mungilal Dalim Chand Equivalent citations: 54 Ind Cas 836, on this point which suggests that an appeal would lie against such rejection under Clause 15 of Letters Patent. Can someone please provide some guidance in this regard. It would be really helpful. Thank you.