Gwalior Fort is in the central Indian state of Madhya Pradesh, overlooking Gwalior town.It is one of the biggest forts in India. From historical records, it is established that it was built in the 8th century. The fortress and the city have been integral to the history of the kingdoms of North India. It is said that the Mughal Emperor Babur (1483–1531) described it as, "The pearl in the necklace of the forts of Hind".The fort’s history relates to two parts, the first part being built during the early Tomar rule 8th century, while the second part, and the palace, was constructed by Raja Man Singh in the 15th century.Gwalior Fort also occupies a unique place in the human civilization as the place which has the first recorded use of zero ever, This site is of mathematical interest because of what is written on a tablet recording the establishment of a small 9th century Hindu temple on the eastern side of the plateau with 0 degrees indicated on a map .
© Ramdas Iyer Photography