The legend of Khana centers around her association with Chandraketugarh and that she was the daughter-in-law of the famous astronomer and mathematician, Varāhamihira, also called Varaha or Mihira, a jewel among Chandragupta II Vikramaditya's famed Navaratna sabha. It is widely believed that Khana was Varahamihira's daughter-in-law, and an accomplished astrologer, becoming thereby a potential threat to Varahamihira's scientific career. However, she exceeded him in the accuracy of her predictions, and at some point, either her husband or a hired hand cut off her tongue to silence her prodigious talent. There is another heritage mosque in the name of Pir Gorachand.
History
Chandraketugarh is thoughtby whom? to be a part of the ancient kingdom Gangaridai that was first described by Ptolemy. The history of Chandraketugarh dates back to almost the 3rd century BC, during the pre-Mauryan era. Artefacts suggest that the site was continuously inhabited and flourished through the Shunga-Kushana period, onwards through the Gupta period and finally into the Pala-Sena period. Archaeological studies suggest that Chandraketugarh was an important town and a port city. It had a high encircling wall complete with a rampart and moat. The residents were involved in various crafts and mercantile activities. Although the religious inclinations of the people are unclear, hints of the beginning of some future cults can be seen in the artefacts. Some of the potteries carry inscriptions in Kharoshthi and Brahmi scripts.
After these periods, there was no such example of any other civilization on the ruin of Chandraketugarh.
Excavated Archeological Objects
inscriptions with Megalithic Graffiti Symbols read "yojanani setuvandhat arddhasatah dvipa tamraparni", meaning "The island of Tamraparni is at a distance of 50 yojanas from Setuvandha. The mast of a ship with Vijayasinha's seal, describing Vijayasinha, the son of the king of Sinhapura of Vanga's marriage to Kuveni – the indigenous "Yakkha queen of Tamraparni". Chandraketugarh features many examples of terracotta art, displaying an unusual degree of precision and craftsmanship. These plaques are comparable to those found at other better-known sites such as Kaushambi and Ahichhatra. The terracotta plaques from these sites often carry similar motifs executed in nearly identical fashion. This similarity suggests an established communication link and common cultural heritage among these sites. Finds include Northern Black Polished Ware relics, later wares dated from about 400 BC to 100 BC and approximately contemporary with the Maurya period, as well as from the more recent Kushanas and Gupta periods. Many silver punch-marked coins and a few gold coins have been unearthed from Chandraketugarh, including a gold coin of Chandragupta-Kumardevi. Many semi-precious stone beads were also found here, along with items made of ivory and bone. Even a few wooden objects have survived.