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. Several prominent Indian and foreign scientists, including Nobel laureates, attend and speak in the congress. Genesis The Indian Science Congress Association (ISCA) owes its origin to the foresight and initiative of two British chemists, namely, Professor J. L. Simonsen and Professor P. S. MacMahon. It occurred to them that scientific research in India might be stimulated if an annual meeting of research workers somewhat on the lines of the British Association for the Advancement of Science could be arranged. Objectives The Association was formed with the following objectives : To advance and promote the cause of science in India; To hold an annual congress at a suitable place in India; To publish such proceedings, journals, transactions and other publications as may be considered desirable; To secure and manage funds and endowments for the promotion of Science including the rights of disposing of or selling all or any portion of the properties of the Association; To do and perform any or all other acts, matters and things as are conductive to, or incidental to, or necessary for, the above objects. Indian Science Congress sessions First Congress The first meeting of the congress was held from 15 to 17 January 1914 at the premises of the Asiatic Society, Calcutta. Honorable justice Sir Ashutosh Mukherjee, the then Vice Chancellor of the University of Calcutta presided over the Congress. One hundred and five scientists from different parts of India and abroad attended it. Altogether 35 papers under 6 different sections, namely Botany, Chemistry, Ethnography, Geology, Physics and Zoology were presented. Silver Jubilee The Silver Jubilee Session of the Science Congress was held at Calcutta in 1938 under the presidency of Lord Rutherford of Nelson but due to his sudden death, Sir James Hopwood Jeans took the chair. It was at this Jubilee Session that the participation of foreign scientists in session of the