The Institute of Chartered Accountants of IndiaSign In ICAI CDS Portal is a platform for students to order, track, and manage study materials provided by the Institute of Chartered Accountants of India. Learn how to use the centralized distribution system ( CDS ) of ICAI to get free study material for CA courses. Follow the steps to login, choose your subjects, apply coupons and track your order through CDS portal . ICAI provides updated Study Material at the door step of the Students through Centralized Distribution System ( CDS ) portal . Students can order, track and submit feedback for their course materials using coupons and courier charges.