Due to a lot of snow, the Manali-Leh roadway was blocked.

According to the most current reports, significant new snowfall has impeded vehicular flow throughout the whole Lahaul and Spiti provinces. According to reports, these areas have had significant snowfall since Wednesday, which has caused the district's connected roadways to become blocked.
Additionally, due to significant snowfall close to Atal tunnel, the Manali-Leh route via Atal tunnel was shut down from Solang valley to the Lahaul side. According to reports, significant snowfall at Kunzum pass on this route stopped the road access to Spiti valley from the Manali side.

If rumours are to be believed, Keylong, the primary district headquarters, has also had a lot of snowfall recently. And according to the police, the district's whole traffic flow came to a stop due to the region's severe snowfall. Additionally, all of the district's internal road connections have been closed to traffic.
As a result, the district administration recently issued a warning and advised the public to refrain from making needless trips to the Lahaul and Spiti regions.
In order to guarantee road connectivity between Manali and Lahaul, the Border Roads Organization has been working ceaselessly to install machinery on the Manali-Leh route via the Atal tunnel.