evidence: With snow melting in the high-altitude areas, China’s People Liberation Army has begun constructing a post along the Indian border in the sensitive Kaurik sector of Himachal Pradesh’s tribal Lahaul and Spiti district. [...] Five battalions of the ITBP guard the border with China in the state. In all, there are 20 ITBP posts along the border and Kaurik is a sensitive one being the last village beyond Sumdoh. [...] China stepped up activity in the region after air incursions in Kaurik sector in April last year. Chinese helicopters violated Indian airspace twice in April 2020.