Indian Science Congress Association(ISCA) is a premier scientific organisation of India with headquarters at Kolkata, West Bengal. The association started in the year 1914 in Kolkata and it meets annually in the first week of January. It has a membership of more than 30,000 scientists. The first Indian Science Congress was held in 1914 at the Asiatic Society in Calcutta. After pseudoscientific speeches at the 2019 Indian Science Congress, the congress has established a policy that requires speakers at future conferences to be vetted and scrutinizes the content of their talks.