Which is the largest city in the Indus Valley Civilisation?
Rakhigarhi is a village in Hisar District in the state of Haryana, situated 150 kilometres to the northwest of Delhi. It is the site of a pre-Indus Valley Civilisation settlement going back to about 6500 BCE. Later, it was also part of the mature Indus Valley Civilisation, dating to 2600-1900 BCE. The site is located in the Ghaggar-Hakra River plains, some 27 km from the seasonal Ghaggar
Rakhigarhi encompasses a set of seven mounds, and there are many more settlement mounds in the immediate vicinity. Not all of them were occupied at the same time. Depending on which mounds to include, the estimates of the size of Rakhigarhi have been given variously as between 80 and 550 hectares. In January 2014, the discovery of additional mounds resulted it in becoming the largest Indus Valley Civilisation site, overtaking Mohenjo-daro (300 hectares) by almost 50 hectares, resulting in almost 350 hectares. Until now, specialists in the Harappan civilisation had argued that Mohenjo-daro in Pakistan was the largest among the 2,000 Harappan sites known to exist in India, Pakistan and Afghanistan. Mohenjo-daro, Harappa and Ganweriwala (in Pakistan) and Rakhigarhi and Dholavira (in India) are ranked as the first to the fifth biggest Harappan sites.
The size and uniqueness of Rakhigarhi has drawn much attention of archaeologists all over the world. It is nearer to Delhi than other major sites, indicating the spread of the Indus Valley Civilisation east across North India. Much of the area is yet to be excavated and published.
Villagers have destroyed much of these two mounds for cultivation. A team of archaeology teachers and students discovered them when they surveyed the site.
What are the threats faced by the Archaeological Survey of India in such projects?