Congress's Rahul Gandhi made it clear to the senior leaders of the party today that there will be zero tolerance on corruption -- indicating that it could be a big plank in the party's campaign against the BJP. The message was delivered at a meeting in Karnataka, where several leaders has come under the scanner of central agencies. But the party has won a sweeping victory in the election held earlier this year, riding the largescale corruption and bribery allegations against the previous Basavaraj Bommai government.