The BOLT TWSs of a Member are deactivated for non-payment / late payment of margins or settlement dues or on apprehension of financial difficulties or on detection of serious irregularities or for frequent violations of trading restrictions. Such decisions are taken on a case-to-case basis. The overall objective in resorting to this ultimate step is to ensure that questionable trading behavior of a Member does not compromise the safety of the market or jeopardize the integrity of the market.