There are many state boards and central boards in our country for the education of children. Each has its own uniqueness and quality. However, the two boards CBSE and ICSE are centrally standardized. You can enroll in any of your nearest CBSE or ICSE affiliated schools. But keep in mind that if you want math-oriented then CBSE is better than ICSE.
Below is a brief overview of these two boards:
1. CBSE stands for Central Board of Secondary Education. It was formed on November 3, 1962, and is headquartered in New Delhi, India. It has more than 16000 approved schools in India and 24 more countries around the world. The sanctioned session in schools is at the higher secondary level, which includes all Kendriya Vidyalayas, all Jawaharlal Nehru Schools, private schools, and most of the schools approved by the Central Government of India.
The Board is responsible for conducting the final examinations for 10th and 12th class students, for the 10th and 12th classes of the All India Senior School Certificate Examination (AISSEC), each spring as well as for the entrance examinations for engineering students - AIEEE, and medical students - AIPMT.
2. The Council for Indian School Certificate Examination (CISCE) conducts an examination known as the Indian Certificate of Secondary Education (ICSE). The Council is a private board of education in India which is up to 10th class and after 10th class, ICSE becomes ISC (Indian School Certificate). There are 1000 and more schools approved by the board, in India and other countries of the world.
Now, I think you can make a good choice for your ward for his/her bright future.
Believe in the existence of God the superpower.
Regards
Dhruba