New Delhi, Aug 17 - Gujarat Chief Minister Narendra Modi Monday accused the Congress-led central government of playing politics with terrorism and demanded to know why the state's proposed anti-terror bill was returned.

In June the central government suggested amendments to the Gujarat Control of Organised Crime Act (GUJCOCA) that proposes to curb terrorism with tougher laws.

'I fail to understand why the central government should oppose provisions which are already part of the similar laws in Karnataka and Maharashtra,' Modi said as he spoke at an internal security meeting attended by chief ministers.

'We must draw a clear line' between those who support terrorism and 'those who are on the side of society', Modi said.

'Even the so-called liberal democracies and proclaimed upholders of human rights like the US, Canada, Australia have enacted laws having more stringent provisions than the proposed GUJCOC Act.