Why did CBI summon Akhilesh Yadav in UP illegal mining probe? What’s the case?

The Central Bureau of Investigation (CBI) on Wednesday summoned Samajwadi Party (SP) chief Akhilesh Yadav in connection with a 2019 illegal mining case in Uttar Pradesh. Yadav, who was the then chief minister of Uttar Pradesh, has been called as a witness in the five-year-old case.
(With inputs from agencies)