12 hours of fasting is mandatory. Child Health Check Package 2 hours of fasting is mandatory. Child Health Check Package 2 hours of fasting is mandatory. Child Health Check Package 2 hours of fasting is mandatory. Child Health Check Package 2 hours of fasting is mandatory. Child Health Check Package 2 hours of fasting is mandatory. Child Health Check Package 2 hours of fasting is mandatory. Child Health Check Package 2 hours of fasting is mandatory.