The Ikshavakus rose in the Krishna-Guntur region on the ruins of Satvahanas. The Ikshavakus were a local tribe. They started the practice of land grants in the Krishna-Guntur region. They also built many monuments.
Nagarjuna was also termed as the Indian Einstein. He proposed the Theory of Relativity in his time in the form of a Sutra which is also called as the Prajna Parimata Sutra. He was a great patron of Mahayana doctrine.
The Divyavadana is a Sanskrit anthology of Buddhist avadana tales. They have originated in Mulasarvastivadin vinaya texts. It is dated to 2nd century CE.