Criminal liability of child under IPC

Sec. 82 of IPC conclusively lays down that any offence committed by a child below 7 years of age shall not be punishable as the child is "doli incapax" in law. Sec.83 makes a the criminal act of a child above 7 years but below 12 years of age punishable on the proof that the child understands the consequences of his act. The question is, what is the liabilty of a child for offence committed whose age is 7 years, who falls neither in sec.82 nor in sec.83 ?