Will it really make sense for Anurag to throw Prerna off a bridge without knowing Bajaj would be there for her? Or someone will save her. That would mean a complete villain no? Throwing her off the bridge without any guarantee. That's murder.
If we want to imagine Bajaj not knowing anything... Maybe Anurag got an inkling Bajaj kept an eye on Prerna( after his sudden help to Sneha) and no matter what danger he would save her so he takes the risk and throws her off.
I don't want Bajaj to be involved at all.