Neela thotti/ thotti is the tamil colloquial term that refers to the avuri (indigo) wet leaf production tank. The existence of a number of thottis in a region implies the range and scale of cultivation and production of indigo. Before the 90s in the northern part of Tamilnadu, India, indigo was cultivated on a large scale for indigo cake production with numerous thottis. The development of synthetic dyes affected the market value of natural dyes.

It was believed that if one made a wish with their arms wrapped around the Iron pillar with their back against it their wish would be granted. Before the iron railings that ‘protect’ the Iron Pillar today, many visitors, both young and old, would try their luck at making a wish. Similar are the memories of long-time residents of Mehrauli. Many remember being able to freely enter the Qutub Minar complex and playing or picnicking, before the ticket booths and high walls of today.