NEW DELHI: The Supreme Court today directed advocate Prashant Bhushan , who has levelled allegations against CBI Director Ranjit Sinha of protecting accused in the 2G case, to reveal the name of the whistleblower from whom he got CBI documents and guest list at the top cop's residence.A bench headed by Justice H L Dattu asked Bhushan to name the whistleblower in the sealed envelope on the next date of hearing and said that it will go into the merits of allegations after knowing the source of information, as it may have ramification on the reputation of the director and also affect the ongoing trial in the 2G scam.It said that the affidavit filed by Bhushan is not in consonance with the Supreme Court rules and asked him to reveal the source from whom he got all the documents.The director questioned the very existence of the diary before the apex court and said that 90 per cent of the entries were fudged though some entries may be genuine.Advocate Vikash Singh, appearing for the top cop, submitted that somebody else is controlling the proceedings in the case and raised questions on how a media group published a story in advance that Bhushan will be depositing the original guest list before the apex court.He alleged that a corporate house is working behind all these controversies and it is intended to benefit the accused in the 2G scam.The bench also wanted to know the stand of CBI in the controversy but the senior advocate K K Venugopal, appearing for the agency, refused to get into it, saying that it is a matter between advocate Prashant Bhushan and the director.It then directed its registry to keep all documents and affidavits filed by the CBI director in a sealed cover and deposit them with the Secretary General for safe custody The apex court posted the matter for further hearing on September 22.