He said Delhi Development Authority housing schemes announced in the past also have been mired in controversies and scams.
"More than Rs. 500 Crore have been collected by these agents (in the present scheme)... A large number of middlemen are intevening to make back-hand deals," Rudy said.
BJP demanded a "full transparent lottery system in full public eye" on the scheme.
"People invest their life-long savings in such schemes," Rudy said.
DDA had recently announced a housing scheme in which more than 15,000 flats are available. More than 14 Lakh forms were sold. The draw is likely to take place by April 30, 2011.