Hi @Tarak Dave ,
Per my test, The ViewFields tag should be in Query tag. Try following CamlQuery:
camlQuery.ViewXml = "<View Scope='Recursive'><Query><OrderBy Override='TRUE'><FieldRef Name='Modified' Ascending='False'/></OrderBy><ViewFields><FieldRef Name='Title' /><FieldRef Name='Modified' /><FieldRef Name='FileDirRef' /><FieldRef Name='FileLeafRef' /></ViewFields></Query><RowLimit Paged='TRUE'>10</RowLimit></View>";
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