Gu was later convicted and given a suspended death sentence, while Bo, an active member of the Central Committee and tipped to get elected for a top post is awaiting trial after his expulsion from the party and the country's national legislature.
Also ahead of the Congress, a report in the New York Times alleged that the family of outgoing Premier Wen Jiabao has a wealth of over USD 2.7 billion, accumulated during his ten year tenure.
While the Foreign Ministry termed it a smear campaign being conducted with ulterior motives, his family members denied the allegations through a lawyer in Hong Kong.
The NYT websites were blocked in China.
Similar allegations were also made Bloomberg news agency against the family of Vice President Xi Jinping who is tipped to succeed President Hu Jintao in the Nov 8 Congress.
The congress is expected to make strategic arrangements for the overall advancement of China's reform and opening up and socialist modernisation drive as well as for the overall advancement of the new grand project of the Party building, a Xinhua report said.
Significantly another report of the news agency warned the recent public protests against a chemical plant and erring officials "signalled a warning to the party".
The recent outcry against a chemical plant project in east
China's booming city of Ningbo and similar events in other cities this year, signaled a warning to the ruling party that it has to face up to mounting challenges from the people who are becoming more aware of rights, the report said.
"Chinese people's rights awareness seems to be growing faster than local authorities' preparedness to deal with the change that has seen popping-up troubles, including protests, across the country in recent years," it said.
"More interestingly, they (the protestors) added English translations to their slogans, such as "Get out of Ningbo!"
"The translations indicate that local people have begun to recognise the importance of grabbing foreign media's attention to make their grievances heard in an era when new media is globalisng information dissemination and the country has to become more open to foreign media outlets," it said.
The Seventh Plenary Session of the 17th Central Committee of the Communist Party of China (CPC) met here to discuss a draft report to be submitted to the upcoming 18th Party congress to be held on Nov 8.
First Published: Thursday, November 01, 2012, 17:30