The public inquiry commission into the 1985 Air India bombing will on Tuesday release an interim report, mainly comprising testimonies of families of the victims, but without offering any suggestions as its work is still to be finished.

The first volume of commissioner John Major's report is expected to be released without any findings of fact or conclusions.

The former Supreme Court judge's interim report will consist largely of a narrative recounting harrowing stories told by the families of the victims about the emotional impact of the tragedy that claimed 329 lives.

It will also document their difficulties in getting help from the Canadian government when they traveled to Ireland to identify the bodies of their near and dear ones pulled from the North Atlantic sea, reports said.

The volume won't contain any conclusions about the adequacy of aid offered by the Foreign Affairs Department, or any policy recommendations for future changes in operating procedure.

That will come in a final report sometime next year, along with a long-awaited assessment of how the Royal Canadian Mounted Police and the Canadian Security Intelligence Service handled investigations of the attack.