Kanpur/ Jammu, Jan 20 (ANI): Spell of intense cold wave continued to sweep large parts of northern India, paralysing normal life and disrupting rail traffic on Monday. People were seen sitting around bonfires on pavements to beat the cold. Dense fog engulfed many parts of the region, causing trouble for the daily commuters due to poor visibility and dozens of trains running behind schedule or cancelled. Biting cold wave forced people to stay indoors within the warmer confines of their houses, while office-goers and schoolchildren had to struggle to reach their destinations.