Hello Dear,

Diploma in Orthodontics is a Diploma level Dentistry Course and the duration of the course in of 2 years. This course focuses on diagnosis and treatment using research and by developing critical thinking and writing skills. The main focus is on the alignment of the teeth and the dental arches.

Master of Dental Surgery (MDS) Orthodontics is a postgraduate course and its duration is of 3 years. This course is associated with the study and treatment of malocclusion which are caused due to improper jaw relationship, teeth irregularity of both.You will learn about treating the disability effectively and efficiently.

Below is a link of some top colleges offering this course.

https://medicine.careers360.com/colleges/list-of-mds-in-orthodontics-colleges-in-india

Good Luck