Archeological Survey of India - Centenary 14.12.1961

These two stamps on the two covers was issued to commemorate the Centenary of the Archeological Survey of India on 14.12.1961.

The Archaeological Survey of India is an Indian government agency in the Department of Culture that is responsible for archaeological studies and the preservation of cultural monuments. According to its website, the ASI's function is to "explore, excavate, conserve, preserve and protect the monuments and sites of National & International Importance."

The Archaeological Survey of India (ASI) is the successor of the Asiatic Society of British archaeologist Sir William Jones, founded January 15, 1784. In 1788 it begun to publish a journal The Asiatic Researches and in 1814 built its first museum in Bengal.

The ASI in its current form was founded in 1861 under British colonial administration by Sir Alexander Cunningham with the help of the then Viceroy Canning. At the time, its domain also included Afghanistan. When Mortimer Wheeler became Director-General in 1944, the head-office of the Survey was located at the Railway Board building in Simla. Prior to the partition of India, its' domain also included present-day Pakistan and Bangladesh. After independence, it came under The Ancient Monuments and Archaeological Sites And Remains Act of 1958.

Kalibangān is a town located on the left or southern banks of the Ghaggar River , identified by some scholars with Sarasvati River in Tehsil Pilibangān, between Suratgarh and Hanumāngarh in Hanumangarh district, Rajasthan, India 205 km. from Bikaner. It is also identified as being established in the triangle of land at the confluence of Drishadvathi and Sarasvathi Rivers. The prehistoric and pre-Mauryan character of Indus Valley Civilization was first identified by Luigi Tessitori at this site. Kalibangan's excavation report was published in its entirety in 2003 by the Archaeological Survey of India, 34 years after the completion of excavations. The report concluded that Kalibangan was a major provincial capital of the Indus Valley Civilization. Kalibangan is distinguished by its unique fire altars and "world's earliest attested ploughed field".