Reduced pollution due to the countrywide lock-down allows Indian town a glimpse of Himalayan mountain range more than 140 kms away

Where did you get the 140 km number from? Looking at Google Earth, it looks like half of that. These mountains are part of the Dhauladhar range. It is range of very high prominance, that is height from surrounding areas. via Pocket https://ift.tt/2UE5bsY