to be daydreaming or lost in thought, often to the point of being unaware of what is happening around

खयाली पुलाव पकाना या दिवास्वप्न देखना

English Usage: He always has his head in the clouds during meetings, missing important details.

Hindi Usage: वह हमेशा बैठकों में खयाली पुलाव पकाता रहता है और महत्वपूर्ण बातों को नजरअंदाज कर देता है।