GNM Nursing diploma is offered by various institutes in India and the admissions are facilitated by entrance exams conducted at State level. GNM Nursing is a three and a half year diploma course inclusive of a six-month internship, and can be pursued after completing Class 12 with. General Nursing and Midwifery or GNM is a three-year and six-month diploma course designed for aspirants who want to pursue a career in clinical nursing. 14 hours ago · What is GNM? GNM or Diploma in General Nursing and Midwifery is a 3-year and 6-month long diploma course designed for aspirants who. GNM stands for General nursing and midwifery. GNM programme is meant to prepare general nurses who can efficiently perform as members of the health team and capable of dealing the competencies in.