Using below xml request i was able to alter the ledger option page in the tally erp9. But under stock group ledger how to alter opening and closing balance. "<ENVELOPE><HEADER><VERSION>1</VERSION><TALLYREQUEST>Import</TALLYREQUEST><TYPE>Data</TYPE><ID>All masters</ID><STATICVARIABLES><SVCURRENTCOMPANY>company name</SVCURRENTCOMPANY></STATICVARIABLES></HEADER><BODY><DESC></DESC><DATA><TALLYMESSAGE><LEDGER NAME='Abc com' Action ='Alter'><NAME>Abc </NAME><AFFECTSSTOCK>Yes</AFFECTSSTOCK></LEDGER></TALLYMESSAGE></DATA></BODY></ENVELOPE>"