Joshimath sinking: Scientists claim 30 percent of ancient town is 'hollow'

Disaster management officials believe that in such a situation, 30 percent of the area affected by landslides can collapse at any time. 

Joshimath sinking: Scientists claim 30 percent of ancient town is 'hollow'
Disaster management officials believe that in such a situation, 30 percent of the area affected by landslides can collapse at any time.