So the " Aap Munney ko chup kiyoo nahee karatee?" syndrome is not exclusive to South Asians alone.
A study of rhesus macaques revealed that females were more likely to feed their bawling babies if irritated bystanders lurked nearby. The researchers discovered that females were twice as likely to respond to their infants by feeding them in the presence of aggressive males or more dominant females than when in the company of less dominant or closely related monkeys.
Further study of the population revealed that although attacks were rare, mothers and infants were more than 30 times more likely to face aggressive behaviour from angry onlookers when a baby was crying than if the baby was content.(Retrieved fron http://news.bbc.co.uk/2/hi/science/nature/7934852.stm)