River Chandra in Lahaul-Spiti froze partially as the temperature dropped in Himachal Pradesh. The cold wave has intensified in the state over the past few days. The lowest temperature in the state was recorded in tribal district Lahaul and Spiti's administrative centre Keylong at minus 11.1 degrees Celsius. Besides Manali, Solan, Chamba, Kalpa, Seobagh, Sundernagar and Bhuntar were shivering at sub zero level during the period.