In reply to aditya.polepeddi:
Did you try this?
function void set_report_id_verbosity_hier (string id, int verbosity)
This changes the verbosity for a specific ID.
You can call this from any component after constructing.
A good place is the start_of_simulation_phase of your env:
this.set_report_id_verbosity_hier("UVM/REPORT/SERVER", UVM_NONE);