 Hello, welcome to the online course under NPTEL braces titled Risk and Reliability of Offshore Structures. I am Dr. Srinivasan Chandrasekar from IIT Madras in the Department of Ocean Engineering. I will be conducting this course for you online. Offshore structures are generally built for extraction of various natural resources. The design concepts are changed over the decades. One has to really recognize that there are many intrinsic uncertainties such as material properties, analysis methods and design procedures which need to be addressed rationally. Therefore, a detailed knowledge of reliability of offshore structures using probabilistic tools become very important and need of the are for both industry and academia. This course will focus on the important step towards capacity building for design and development of offshore platforms for oil and gas exploration. The course actually aims to improve the confidence level of the participants and their preparedness for the profession. Offshore activities on one hand lead to increase in social wealth and on the other hand make society vulnerable to risks equally. An offshore engineer is therefore usually accountable for the decisions made during the progress and execution of his project. A hallmark of professionalism is therefore to quantify these risks and benefits involved well in advance. The key focus of this course titled Risk Assessment and Reliability of Offshore Structures will focus on analysis, design, inspection and planning risk involvement and of course reliability in every walk of this profession. Examples and tutorials will be also discussed in detail to enhance the understanding skills of the course. Lectures through and through will be delivered in classroom style using blackboard to ensure a slow and steady upkeep of the concepts with detailed examples and discussions. The whole course will be taught in three modules. First module will focus on concepts of probability, sampling statistics and plausible reasoning. Second module will address fundamentals of structural reliability, various uncertainties involved in the design and analysis and different levels of reliability. And the third module describes risk assessment and reliability analysis of offshore structures with classical examples. An exam will be conducted also at the end of the course for enabling issue of certificate by NPTEL IIT Madras. This course of course has no prerequisite and open to all disciplines of engineering and applied sciences. I hope to see you in the classroom back when the course starts. Please register for the course and get the maximum benefit from this course from NPTEL portal IIT Madras. Welcome to the course and thank you.