In India, every one wants to give his judgement without even knowing any ground reality. Everyone is publishing their theory of accident and blaming either SM, LP or Signal department.

SM panel have video recordings and playback features.
Loco have recording of each and every pration of LP and ALP
S&T...
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have recording of each and every position of points and signal aspect.

Don't worry let them investigate and Be sure that culprit will be punished.

Also note every organisation try not to disclose the reason of real failure and that's fine in my view because it's nobody business to know the details of actual failure because it will also disclose the technical aspects which are not good for the safe operations in future.

While we are doing speculation on the various causes. This article is chilling.

click here

The February 8th incident at Hosadurga Road involving 12649 Sampark Kranti Express was a premonition of this...
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disaster. All the evidence points to ASM, Point Man having done a manual override of the system (giving green to Coromandel Express) without correcting the points themselves (which pointed to the loop). This is the best explanation as to why the signal was given and then taken-off.

I just hope Railways does a proper due-diligence and simply does not start peddling a sabotage theory. I think the statement of the BCCN Goods Train guard here is crucial. Was he able to see something suspicious near point 17A of BNBR before the ill-fated Coromandel Express crashed into the goods train.

We are nearly 30 years post the 1995 Firozabad Rail Disaster. A disaster of this magnitude leading to 275 deaths should not be happening in India in 2023.