Complex sentence: Each of the 8 children has his own identity and a nickname based on these qualities is given to them-Akram to the fast bowler (Ramashekar), Encyclopedia to the mastermind (Arjun).
Split into simpler sentences: Each of the eight children has his own identity and a nickname based on these qualities. Akram is the fast bowler (Ramashekar), Encyclopedia is the mastermind (Arjun).