New Delhi: Activist lawyer Prashant Bhushan on Thursday admitted in the Supreme Court to a "genuine mistake" in tweeting that the government had perhaps submitted to it fabricated documents of the high-powered selection panel on the appointment of interim CBI chief.

Bhushan refused, however, to tender an "unconditional apology" in the apex court for seeking recusal of Justice Arun Mishra from hearing the contempt petition filed against him by Attorney General K K Venugopal.