According to the report, pneumonia and diarrhoea, the two biggest killers of children, killed about 2,197,000 children under five years of age in 2010, making up 29 per cent of all child deaths under age five worldwide.
And with 609,000 deaths India topped the list of the 75 countries with the highest mortality burden attributed to the two diseases, it said.
The report also noted that about half the world's deaths due to pneumonia and diarrhoea occur in just five mostly poor and populous countries such as India, Nigeria, Democratic Republic of the Congo, Pakistan and Ethiopia.
However, simple interventions such as introducing routine vaccination programmes could save lots of lives in the coming year, the report said.
"We know what works against pneumonia and diarrhoea