The PG Department of Mathematics and Statistics organized a one day seminar on Abstract Algebra and its Applications in Cryptography for third year UG and PG students of the department. The Resource Person was Dr.K P Girish,Assistant Professor, Department of Mathematics,MES Kalladi College,Mannarkkad. It was held on 26.10.2023 at seminar hall. A total of 36 students participated. Abstract algebra represents a class of powerful mathematical tools which have application in diverse fields. It is an extension of classical algebra which deals with abstract structures like groups, rings and fields instead of the usual number system.This seminar got an overview of these structures which is a prerequisite in understanding the core of Cryptosystems.In overall,it was beneficial and successfully ended.