Just after the 3rd day of the devastating earthquake in Nepal (25th April, 2015), writer/director Prabin came with this idea for a film. The 1st draft of its script was ready when he and many other people in Kathmandu were still living under the tents in the aftershocks.
'72 in the title Kathaa '72 (The Story of '72) is the Nepali year 2072 BS i.e, 2015 AD, the year in which the whole country shook into grief by the devastating earthquake.
For the 1st Recce, the team had no idea how similar the location would look from the photo. They had a short trek of 6 days and found and spotted many beautiful scenes in the route which are in the movie as well. But they had no idea that they will meet nobody and will find no shelter in the whole trek.
Without meeting any people on the continuous 4 days trail of the recce, when the team reached the final destination of the movie - Paanchpokhari, Sindhupalchok (Nepal), situated on an altitude of approx. 4200 m, they were so much excited as they felt it like a heaven, five ponds situated on the lap of the mountains, so silent, not even the sounds of birds or animal, just the flowing water and the breeze.
The team spent 11 days on the Himalayan trail on the shooting. They had a team of only 13 members in cast and crew and additional 22 porters for the trail.