Hi @namit_gupta,
Do you want to change the value of the Created field of the SharePoint Document Library to the person who actually uploaded the file, rather than the connection account of the configuration of the Flow that uploaded the file?
I tried using the Send Http request to SharePoint action to change this property via the Post method, but when I proceeded to configure the Request Body, I found no way to get the specific information of the Created property.
In general, the Created property contains the following, but there is no way to indicate in the Request body that the property needs to be changed:

This is my attempts, it can change some other properties, but there seems to be no way to change Created:

<?xml version="1.0" encoding="utf-8"?>
<entry xml:base="https://beatrng.sharepoint.com/sites/tes/_api/"
xmlns="http://www.w3.org/2005/Atom"
xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices"
xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata"
xmlns:georss="http://www.georss.org/georss"
xmlns:gml="http://www.opengis.net/gml" m:etag=""22"">
<id>4d64755d-e7b0-4ab6-8f88-27c9e84c0014</id>
<category term="SP.Data.TRONItem" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
<link rel="edit" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/FirstUniqueAncestorSecurableObject" type="application/atom+xml;type=entry" title="FirstUniqueAncestorSecurableObject" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/FirstUniqueAncestorSecurableObject" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/RoleAssignments" type="application/atom+xml;type=feed" title="RoleAssignments" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/RoleAssignments" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/AttachmentFiles" type="application/atom+xml;type=feed" title="AttachmentFiles" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/AttachmentFiles" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/ContentType" type="application/atom+xml;type=entry" title="ContentType" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/ContentType" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/GetDlpPolicyTip" type="application/atom+xml;type=entry" title="GetDlpPolicyTip" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/GetDlpPolicyTip" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/FieldValuesAsHtml" type="application/atom+xml;type=entry" title="FieldValuesAsHtml" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/FieldValuesAsHtml" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/FieldValuesAsText" type="application/atom+xml;type=entry" title="FieldValuesAsText" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/FieldValuesAsText" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/FieldValuesForEdit" type="application/atom+xml;type=entry" title="FieldValuesForEdit" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/FieldValuesForEdit" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/File" type="application/atom+xml;type=entry" title="File" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/File" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Folder" type="application/atom+xml;type=entry" title="Folder" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/Folder" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/LikedByInformation" type="application/atom+xml;type=entry" title="LikedByInformation" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/LikedByInformation" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/ParentList" type="application/atom+xml;type=entry" title="ParentList" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/ParentList" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Properties" type="application/atom+xml;type=entry" title="Properties" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/Properties" />
<link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Versions" type="application/atom+xml;type=feed" title="Versions" href="Web/Lists(guid'70d3b5ce-6dfd-4a24-8dd0-d417ccc97754')/Items(1)/Versions" />
<title />
<updated>2018-10-23T07:24:14Z</updated>
<author>
<name />
</author>
<content type="application/xml">
<m:properties>
<d:FileSystemObjectType m:type="Edm.Int32">0</d:FileSystemObjectType>
<d:Id m:type="Edm.Int32">1</d:Id>
<d:ServerRedirectedEmbedUri m:null="true" />
<d:ServerRedirectedEmbedUrl></d:ServerRedirectedEmbedUrl>
<d:ID m:type="Edm.Int32">1</d:ID>
<d:ContentTypeId>0x010100F814846D7396F241BD1A1A9D7D082531</d:ContentTypeId>
<d:Created m:type="Edm.DateTime">2018-10-23T05:39:40Z</d:Created>
<d:AuthorId m:type="Edm.Int32">6</d:AuthorId>
<d:Modified m:type="Edm.DateTime">2018-10-23T06:46:32Z</d:Modified>
<d:EditorId m:type="Edm.Int32">6</d:EditorId>
<d:OData__CopySource m:null="true" />
<d:CheckoutUserId m:null="true" />
<d:OData__UIVersionString>22.0</d:OData__UIVersionString>
<d:GUID m:type="Edm.Guid">55383cde-f7b3-48be-aa8e-0589f67e0fb9</d:GUID>
<d:ComplianceAssetId m:null="true" />
<d:Title>TestUpdated</d:Title>
</m:properties>
</content>
</entry>
Properties does not seem to contain the relevant content of Created.
Some links that can be referenced:
managed-metadata-fields
update-list-item-in-sp-2013-using-rest
working-with-lists-and-list-items-with-rest
working-with-folders-and-files-with-rest
I am afraid there is no suitable way to change the value of this field through Flow.
Besides, please consider submit this as an idea in the Microsoft Flow idea forum, so it might be considered for future releases.
https://powerusers.microsoft.com/t5/Flow-Ideas/idb-p/FlowIdeas
Best Regards,
Barry