I am using getdatasubsetdownloadlinkfromrule and following the steps in document

Thanks chandhinir. Your suggestion worked.

And I made one more change. Since it was mentioned in the other post, the data subset has to be created by calling a rule one more time inside the rule (even if we have the datasubset obtained in parent rule) where we are constructing ExportableDataSubset object, I was passing three parameters (fromdate, todate and paginginfo) inside the rule. Now found that its not required. So I am just passing my pre-fetched data subset from parent rule as JSON and converting back into appian type and mapping it in ExportableDataSubset parameter.

So the modification i made on top of chandhinir's response is

Rule: Report_HomeScreen

getdatasubsetdownloadlinkfromrule(
rule!Report_getExportableDataSubset,
a!toJson(
{
datasubset_any: local!datasubset,
           }
)
)

Rule: Report_getExportableDataSubset

with(
local!search: a!fromJson(
ri!input
), /*-- ri!input of type text) -- */
'type!{urn:appian:plugin:datasubsetdownload:types}ExportableDataSubset'
(
datasubset: local!search.datasubset_any,
fieldNames: {"requestStatus","requestId","ageOfStatus"},
fieldLabels: {"STATUS OF CDD","COUNT","AGING IN DAYS"},
filename: "AgingReport"
)
)

Please let me know if anyone face any issue in this approach

Thanks chandhinir. Your suggestion worked.

And I made one more change. Since it was mentioned in the other post, the data subset has to be created by calling a rule one more time inside the rule (even if we have the datasubset obtained in parent rule) where we are constructing ExportableDataSubset object, I was passing three parameters (fromdate, todate and paginginfo) inside the rule. Now found that its not required. So I am just passing my pre-fetched data subset from parent rule as JSON and converting back into appian type and mapping it in ExportableDataSubset parameter.

So the modification i made on top of chandhinir's response is

Rule: Report_HomeScreen

getdatasubsetdownloadlinkfromrule(
rule!Report_getExportableDataSubset,
a!toJson(
{
datasubset_any: local!datasubset,
           }
)
)

Rule: Report_getExportableDataSubset

with(
local!search: a!fromJson(
ri!input
), /*-- ri!input of type text) -- */
'type!{urn:appian:plugin:datasubsetdownload:types}ExportableDataSubset'
(
datasubset: local!search.datasubset_any,
fieldNames: {"requestStatus","requestId","ageOfStatus"},
fieldLabels: {"STATUS OF CDD","COUNT","AGING IN DAYS"},
filename: "AgingReport"
)
)

Please let me know if anyone face any issue in this approach