Hello Faizan,
Please do this from the rule modeler.
I think you can find the standard rule configured in :-
| CONTEXT | CHECKLIST_ST_BP |
| POLICY | DEF_CHKLST_BP |
If there are additional validations needed in your specific scenario : The suggestion would be to create a Z Event callback similar to CRM_SRQM_CHKLST_S_DETER_BP_EC and register it in tr:CRMV_EVENT.
Reward points if this helps.
Regards,
Parveen