I want to know the answer to the following question:
What power had previously defeated the Kalingans?
All the background I'm provided with is that "During the reign of Khārabēḷa, the Chedi dynasty of Kaḷinga ascended to eminence and restored the lost power and glory of Kaḷinga, which had been subdued since the devastating war with Ashoka.". Is that enough to answer the question?
Answer: yes