Title - Fog back in Delhi, traffic hit - Over 20 trains were running behind schedule by several hours and 10

The fog was back in the national capital on Monday with Delhiites waking up to a grey morning after a few days of clear sunshine. Low visibility hampered movement of air, rail and road traffic.

The city woke to a dense fog. At 8.30am, visibility was reduced to 50 metres, and road

traffic slowed to a crawl. Monday's minimum temperature settled three notches above average at 10.6 degrees Celsius. The maximum is expected to hover around 22 degrees Celsius, an India Meteorological Department (IMD) official said.

A railway official said 10 trains were cancelled and 20 delayed by the fog.

"Over 20 trains were running behind schedule by several hours and 10 trains have been cancelled. Dense fog across many parts of north India today (Monday) affected rail services," a Northern Railway spokesperson said.