Algorithm analysis is an important part of a computational theory, for providing detailed knowledge of this Department of Information Technology organized an expert talk,”Optimizing Complexity of Algorithms” on 10th August 2019. Mr. Rajesh Singh Vats from Vision Gate was the guest of honor. The talk aimed to provide knowledge and information to students regarding data structures and algorithm analysis. The speaker, Mr. Rjaesh Singh, was informative about how to estimate complexity of an algorithm in theasymptotic sense, i.e., to estimate the complexity function for large input.