Can we file an appeal (not revision) for order which allowed setting aside abatement?

From your query, I understand that you want to challenge the order of the lower court that allowed setting aside of abatement of the civil suit, in which you are the defendant. As you are already aware, such an order is an interim one and not a final decree. 

As per the provisions of Code of Civil Procedure, 1908, appeals lie from only those orders that are mentioned in Order XLIII Rule 1 of the said code, along with a few more. 

Order of a lower court that allows setting aside of order of abatement of a civil suit is not an appealable order under Order XLIII Rule 1 of CPC or under any other provision of the code, so you cannot successfully appeal against the order you are seeking to challenge. 

Remedies available to you:

1. Challenge the non-appealable order in appeal against the final decree (See Order XLIII Rule 1A & Section 105 (1) of CPC)

You can do nothing for now and just defend the original suit and if the court passes a decree against you, then you can appeal against that decree. In that appeal, you can challenge the order which had set aside the order of abatement of suit.

2. Go for Review of the non-appealable order in the same court

Clause (b) of Section 114 of CPC clarifies that any person considering himself aggrieved by an order from which no appeal is allowed by CPC, may apply for a review of such order to the Court which made it.

3. File for Revision of the non-appealable order in the High Court

Hon’ble HC has the power to revise the order of any subordinate court, if it thinks that such lower court has acted with material irregularity (See Section 115 of the CPC). So, you can file for Revision of the order you are seeking to challenge, in the HC. Also, along with the revision petition, file an application for Stay of Suit, as filing for a revision does not automatically result in stay of suit. 

Thank you very much Supinder Singh ji for taking time to explain in depth. Much appreciate your advise.

Limitation is not relevant in the instant case as the  the period from 15.03.2020 till 28.02.2022  stand excluded while computing period of limitation, in terms of the directions of the Supreme Court.

So also, it is the public policy that disputes are settled amicably or settled on merits. Hence it is unlikely that the revision, as suggested, would be successful.