Which factor causes 'Norwesters' in Eastern India?
- Western Disturbances
- Local convection
- Bay of Bengal moisture
- Both B and C
Answer: Both B and C
Norwesters (Kal Baisakhi) in Eastern India are caused by local convection combined with moisture from the Bay of Bengal. These evening thunderstorms occur in April-May, bringing heavy rain, lightning, and strong winds that relieve pre-monsoon heat.