Following the snowfall, the Rohtang Pass and inner roads in the area got blocked due to which about 300 people, including the students who were on a trekking expedition, got stranded, Keylong Sub Divisional Magistrate Amar Negi said.
Negi said two Indian Air Force (IAF) helicopters have been sought from the state government for rescuing the stranded people.
Thakur was undertaking an aerial survey of several rain-hit areas of the state including those in Kullu and Lahaul-Spiti district to get first-hand information of the situation, a state spokesperson said.
The border road organization (BRO) has cleared about six-km-long Keylong-Stingri road and work is on to clear other blocked inner roads.
Apart of truckers and tourists, several personnel of General Reserve Engineer Force (GREF) has also been reportedly stranded at various stations in the district, the SDM said, adding the exact number of stranded people was not clear yet.