Bharati was found to be critical and admitted to a private hospital in Noida, while Shravan had minor injuries.
Police became suspicious when it found that there were no blood stains inside the vehicle or at the scene of crime.
Police interrogated Shravan, when he admitted that he had a quarrel with his wife and was bringing her from her parents' home last night, when he tried to kill her, said DSP Shivram Yadav.
