'Janter Manter'. The Observatory, Delhi, Punjab.
Photographer: Bourne, Samuel
Medium: Photographic print
This photograph of the Jantar Mantar was taken by Samuel Bourne in the 1860s. The Jantar Mantar observatory in Delhi was one of five built from 1724 by Maharaja Jai Singh II. Jai Singh was given the task by the Mughal emperor Muhammad Shah of revising the calendar and astronomical tables. The observatory contained 13 different instruments for this purpose constructed of brick and faced in plaster. The instruments are still used today to forecast temperatures, calculate the expected arrival, duration and intensity of the monsoon season and the likelihood of flood or famine.