The matter first came to light when the police station at Maharashtra Industrial Development Corporation (MIDC) in Jalgaon was alerted about the racket. Jalgaon is located about 400 kilometres northeast of Mumbai city.

“When the officials visited the premises of the factory in Kusumba village of MIDC, they found a mattress being stuffed with used masks,” said Additional Superintendent of Police Chandrakant Gawali.

Later, police set fire to the piles of masks that they recovered inside the factory.

“Beyond the Wall” — 229-metres (250 yards) long and facing the West — is designed to keep alive the memory of the dividing wall put up by Communist East German authorities nearly 56 years ago on Aug. 13, 1961.

It fell in November 1989 due to mass popular pressure and the decline of Soviet Union power.

The new exhibition features stills from videos that German-American artist Stefan Roloff shot of the Berlin Wall from the west in 1984 — including East German soldiers peering through binoculars, climbing ladders up to watchtowers and walking along the Wall.

“There are very few authentic places where you can still see what’s left of the Wall,” Klaus Lederer, a Berlin senator responsible for culture told a news conference.

Read More: Hitler exhibition in Berlin bunker asks: How could it happen?

The exhibition also features stories and silhouettes of people whose lives were affected by the Wall — including a man who authorities accused of having a fetish, a woman arrested for receiving a postcard from a friend in West Berlin, and another woman whose apartment was bugged by the East German Stasi secret police.

Mario Roellig is one of the victims whose story is told. The Stasi interrogated and imprisoned him after he tried to flee to the West to be with his boyfriend. He remembers a Stasi officer telling him they would find him anywhere.

Years later, when Roellig was working in a shop in reunified Berlin, he realized a customer inquiring about cigars was his Stasi interrogator. Roellig asked for an apology but the man screamed that his sentence was rightful.

“It’s important to talk about it so I can get rid of the fear of this place, that time and above all the perpetrators who are still around,” he told Reuters at the Wall.

Roellig — who now lives in western Berlin — said memories of the past bubble up when he crosses a border and he feels unable to ever spend a night at his parents’ home in eastern Berlin.

“To this day I can’t stay there overnight as I seem to still be anxious that the Wall will be put back up and I’ll be on the wrong side again,” he said.

Roloff, the artist, meanwhile believes his exhibition is particularly relevant at a time when U.S. President Donald Trump wants to build a wall along the border with Mexico.

“For me it’s not necessarily a historic project even though it shows things from a time that has passed. It’s a continuing phenomenon. There have been walls as long as people have existed and unfortunately they’ll continue to exist,” he said.