India, June 23 -- In a novel attempt to tackle one of Mumbai's most persistent eyesores- stubborn paan stains - the Western Railway (WR) has begun testing a special chemical coating at Matunga Road station that officials say could make cleaning walls and pillars significantly faster and easier.

On an experimental basis, WR has applied the red-coloured coating across 3,700 sq ft at eight locations within the station. The pilot project, costing around Rs.5 lakh, uses German nano-technology and is aimed at preventing paan masala stains and graffiti from seeping into surfaces.

"We have applied the chemical coating at Matunga Road station encompassing an area of 3,700 sq ft at eight different locations. This will help clean the walls faster ...