Monuments dwarfed by encroachments Tue, Apr 20 2021 8:42 IST | 1 Views Sanitisation at Agra's Taj Mahal.. Image Source: IANS News Agra, April 20 : Alhough Agra could not celebrate World Heritage Day on April 18 due to the Covid-19 pandemic restrictions, conservationists and green activists have once again highlighted the failure of the Archaeological Survey of India (ASI) to free the string of monuments in the city of encroachments that were seen as a major threat to the health and safety of these precious properties. "The increasing visual pollution was another cause of concern," warned environmentalist Devashish Bhattacharya, adding that high-rise buildings coming up in all parts have gravely distorted the original ambience around several structures.