I personally dont feel that prerna will be wrong in accusing bajaj for anurag condition. Imagine her situation, anurag is someone she loved, he was trying to make her believe from so much time that bajaj wanted to kill him. His words will obviously have an influence. Moreover, she heard anupam when he told her that bajaj has given dhamki to kill anu. In addition, before the accident anurag told prerna about seeing rishab car there. And lastly her own sister has seen rishab sitting in the car which according to people present there knocked down anurag. Everything indicating that bajaj is the culprit to her. Stilllll she did choosed to ask him that if he has done it or not.....she wouldnt have ever asked him if she didnt trusted him a bit.....she trusted...thats why asked but obviously when he will accept from his own mouth, she is gonna hate him for that.
I understand bajaj point of view too......he expected her not to go crazy in love and to listen to him once before she reach conclusions but she was not ready......but that much trust she doesnt have on him as of now that she will buy his explanations even after he said yes for the accident. In the situation she is in right now....her lecturing bajaj wont be wrong. And then this will pave way for the guilt trip when she will get to know that bajaj was accused by her. After that, the trust will develop and she will never doubt and buy his all explanations before lecturing him in future. I know it feels bad to think that prerna will go after bajaj even when he would be innocent in the case.......but i dont really expect her to trust him that much as of now. PreRish story will progress slowly.