Hi @raj_mandalapu There is an existing feature request for assets i.e.
CQ-4236518For AEM pages a new feature has been introduced in AEMaaCS
where you can archive the page so if used pages can be restored at a
later time. Thanks for your participation in AEM community. 
* Try running dispatcher flush manually from the instance on which the
flush is configured.You can try running a curl command. The following
docs may be
If it doesn't work, it means ...