Regarding Kernel development

Hi All, I want to learn how Linux kernel is developed . It would be great if somebody can guide from where I should start and what should I study. I want to understand it clearly so that I can develop some kernel modules too. I have knowledge of C language and as far as Linux knowledge is concerned , I am Red Hat Certified Engineer (RHCE). So, it would be great if anybody can guide me on Kernel Development for my understanding level. Thank you in advance. Best Regards, Shubham Sharma RHCE,SCJP