Mapping of competencies and objectives to the content for all the topics. Functional histology has been provided correlating with the normal histology of the organ. Additional slides which are part of competency-based curriculum have been included. Additional flowcharts have been incorporated. MCQs have been added as part of assessment. Microscopic images of slides have been revised based on feedback received from readers. Separate section on frequently confused slides has been added to improve the learning outcomes and assessment scores in exams.