Hi @Arjun ,
You can use a package parameter, let's say Package::DateParameter.
By default, SSIS assigns a default value as "1899-12-30 00:00:00.000" and passes the default value as the parameter rather than the null value.
Inside the SSIS package you can use the following expression:
$Package::DateParameter == (DT_DATE)"1899-12-30" ? DATEADD("Day",-1,GETDATE()) : $Package::DateParameter)
For the reference: conditional-ssis-expression