The CREDAI, Bangalore (Confederation of Real Estate Developers’ Association of India) site is accessible here. Listed amongst various links on it is one on "code of conduct". But, if you click on it, it just takes you in circles.
I am reproducing below, relevant extracts of mail exchanges on the subject in "OneBengaluru Google-group" (there is an unwritten code in the group that such involved discussions should not be encouraged, and that it is meant largely for exchanging information - well, I guess, that's where PRAJA comes in):