I have enquired about this news from BPL Div officials, but I did not get any confirmation regarding the same maybe due to election code of conduct.
But IMO Amrit Bharat Express is not needed in this sector instead a mixed composition Superfast would work much better as the passenger load between Bhopal to Bengaluru is mainly of the Students, Freshers seeking Job and IT professionals, and to cater all of them a train consist both AC and NON AC coaches is required, full AC and full Non AC train would not work well here. But yes if RB decides to have some AC coaches in Amrit Bharat train as well then it will be great.