Hi Afreen, could you please clarify in which organization you are going to have this job? Is this Hindustan Petroleum Corporation Ltd, HPCL Energy, or HPCL Retails? For the position of HR-Trainee, you need to have a basic knowledge of HR and its functions (7 Stars of HR). For details and complete information on these 7 stars, please refer to my old posts on the Value of HR and its functions. I'm sure this will help you in this regard and also for your career, so that you can enhance your knowledge and HR skills. Move your mouse cursor over my name and find a link "Find all posts by ***". Best of Luck.