Contents: 1. Anatomical concepts of Guda. 2. Anatomy of Anal Canal. 3. Examination of rectal cases. 4. Arshas. 5. Haemorrhoids. 6. Bhagandaram. 7. Fistula-in-ano. 8. Bhagandara Pidaka. 9. Ano-rectal abscesses. 10. Parikarthika. 11. Fissure-in-ano. 12. Nadi Vrana (Pilonidal Sinus). 13. Pilonidal sinus. 14. Gudabhramsha. 15. Rectal prolapse. 16. Sanniruddha Guda. 17. Imperforate Anus. 18. Benign tumours. 19. Carcinoma of rectum. 20. Squamous cell carcinoma. 21. Injuries of rectum and anal Canal. 22. Proctitis. 23. Pruritis Ani.