Jaipur is considered by many urbanists to be one of the best planned cities. Almost all Northern Indian towns of that period presented a chaotic picture of narrow twisting lanes, a confusion of run-down forts/temples/palaces and temporary shacks that bore no resemblance at all to the principles set out in Hindu architectural manuals, which calls for strict geometric planning. Thus, for Sawai Jai Singh II and the Bengali Guru Vidyadhar (who was a 'Shaspati' - Hindu Priest Architect), the founding of Jaipur was also a ritual and a golden opportunity to plan a whole town according to the principles of Hindu architectural theory. The town of Jaipur is in fact, built in the form of a nine-part Mandala known as the 'Pithapada'. Nine signifies the nine planets of the ancient astrological zodiac. It is also known that Sawai Jai Singh II was a great astronomer and a town planner and hence the 'Pithapada'. Also, the commercial shops designed are multiples of nine(27) and then having one cross street for a planet.