"It was at the end of October 2010 that I came to know that some of my relatives had applied for membership in Adarsh society and the same was granted to them," he told the two- member inquiry commission led by Justice (retd) J A Patil set up by the Maharashtra government to probe the Adarsh scam.
Chavan's mother-in-law Bhagvati Sharma, his father-in- law's brother Madanlal Sharma and his sister-in-law Seema Sharma had flats in the building.
Chavan, who had to step down as chief minister after it emerged that his relatives had flats in the scam-tainted housing society, appeared before the commission today for the second time.
He had earlier deposed before the commission in June to answer allegations against him of bestowing undue favours while granting permission for construction of 31-storey Adarsh building in high-end Colaba in south Mumbai.
Replying to questions put forth by commission's counsel Dipan Merchant, Chavan said he was not aware that his relatives had applied for membership in the Adarsh society.
In his brief appearance that lasted barely 10 minutes, Chavan said he was also not aware if Seema Sharma's application for membership of the society was rejected in 2004 but approved in 2008 when he was the chief minister.
He said soon after he came to know of the membersip of his relatives "at the end of October 2010", they relinquished the it on October 29 the same year.