The earliest Satavahana inscriptions belong to the 1st century BCE. In the 1st century BCE the Satavahana defeated the Kanvas and established their rule over parts of central India.
According to B. B. Lal, former DG of ASI, Kalibangan site shows that an earthquake occured around 2600 BC, which brought to an end the Early Indus settlement at the site. It is perhaps the earliest archaeologically recorded earthquake.