According to ICMR the most common cause of infant mortalilty is –: (A) Prematurity, (B) Diarrhoea) diseases, (C) Congenital anomalies, (D) Acute repiratory infection
Answer is A. The most common causes of Infant death are :

Prematurity & low birth weight (51%)
Acute respiratory infection (17%)
Diarrheal diseases (4%)
Congenital malformations (5%)
Birth injuries (3%)
Cord infection (2%)