Hi @Shruti1,
You can use the following documentation to help you to solve the issue: Filter creation and Sysfilter element
For the creation, you should insert the filter inside the schema you want to apply it, editing its XML under (Administration>Configuration>Data Schemas). You can try this solution to guide you:
<sysFilter name="customFilter">
<condition expr="@nt_creation_dt > (GetDate() - 365) AND @nt_provider_id = 'elc'"/>
</sysFilter>
Regards,
Celia