IGCSE VS CBSE for Grade 6 Student - Native of South India.?

My son is studying in Dubai in Grade 5 in CBSE syllabus. My friend suggests me to put him in IGCSE syllabus since it will be the future. How is the scope of IGCSE in India. We are from South India and I would like to put my son in India for his Graduation studies. What will be the basis of acceptance for... show more My son is studying in Dubai in Grade 5 in CBSE syllabus. My friend suggests me to put him in IGCSE syllabus since it will be the future. How is the scope of IGCSE in India. We are from South India and I would like to put my son in India for his Graduation studies. What will be the basis of acceptance for Universities after completing IGCSE?. Can somebody help.
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