Talking to reporters, Chaudhury said she has acted in a way contrary to what has been appearing in the media.
"The truth is and I will be speaking out in great detail about this, the truth is the moment I got this complaint, (which) has not been for many days but actually only on Monday this week, I acted absolutely wholly and solely driven by my desire to address the aggrieved journalist's sense of injury and to act in her interest," she said.
Chaudhury said when she confronted Tarun Tejpal about the matter "very very angrily", he had a different version.
"I absolutely over-ruled his version and asked for unilateral unconditional apology from him," Chaudhury said.
She said that the journalist had complained to her on Monday and the unconditional apology was extended to her on Tuesday.
"Further to this he stepped down, because my sense was that regardless of differing versions, whether it was consensual or non consensual, as a leader of the institution he had transgressed and in addition to her, he had betrayed the faith of other journalists," she said.