Nor Wester - Bardoli Chheerha (Bengal): This is incorrect.
While Nor'westers do occur in Bengal, their local nomenclature there is Kalbaisakhi. Bardoli Chheerha is the local name for these pre-monsoon storms in Assam.
Nor Wester - Kalbaisakhi (Bengal): This is correct.
Kalbaisakhi is the well-known local name for the Nor'wester storms in the state of West Bengal.
Mango Shower - Bardoli Chheerha (Assam): This is incorrect.
Mango showers are pre-monsoon showers primarily associated with Kerala and coastal Karnataka. Bardoli Chheerha, as mentioned earlier, refers to the Nor'wester type storms in Assam.
Therefore, only the second pair is correctly matched:
Nor Wester - Kalbaisakhi (Bengal)