It is one of the negative side-effects of retaining the casteist culture/civilization. The civilization whose byproduct is caste system is something to be ashamed of and should be called UNcivilization.(your comments: India is one of the few civilisations today which has managed -- albeit in a diluted manner -- to retain intact much of her culture and spirituality from the Vedic ages. )
would it be reasonable for the speaker to ascertain the facts about the bribery in a matter of 2-3 hrs no matter who are the bribed/bribing parties. It will also set a bad precedent. Tomorrow any MP would walk into the parliament with currency notes and expect the speaker to halt the proceedings.