The pre-primary stage of school education in India consists of Preparatory class (pre-nursery), nursery, LKG and UKG.
The key difference between primary education and secondary education is that primary education refers to the early stages of formal education, which comes after pre-school or kindergarten education.
The secondary stage of education covering 2-3 years of academic study starts with classes 8th-10th, consisting of students aged between 14-16 years. The schools that impart education up to 10th class are known as Secondary School.