Dear Reachmesri565, after getting a Mechanical Engineering degree, what made you take up HR? What do you do now? Do you serve somewhere? Is it over and above regular duties that you want to learn? Please try Cite HR archives. Type “HR Management” inside the box labeled WHAT DO YOU NEED that you find in the title bar right above. After typing in the box, press the 'research' button next to it. You will get a lot of information. You can also refer to "Related Information" and 'Download Thread' that you find on the right side of this message. Repeat the process for any other topic of your choice.
Regards,
V.Raghunathan