Here is the list of top 10 Boarding Schools of India which you are looking for.

The Doon School, Dehradun, Uttaranchal
Mayo College, Ajmer, Rajasthan
Bishop Cotton School, Shimla, Himachal Pradesh
Rishi Valley School, Chittoor, Andhra Pradesh
St. John’s International Residential School, Chennai
Welham Girls School, Dehradun, Uttaranchal
The Scindia School, Gwalior, Madhya Pradesh
The Daly College, Indore, Madhya Pradesh
St. Paul’s School, Darjeeling, West Bengal
Sarala Birla Academy, Bangalore, Karnataka