BYRNIHAT, India (Reuters) - Two-year-old Sumaiya Ansari, a resident of India's Byrnihat town which is ranked the world's most polluted metropolitan area by Swiss Group IQAir, was battling breathing problems for several days before she was hospitalised in March and given oxygen support.
She is among many residents of the industrial town on the border of the northeastern Assam and Meghalaya states - otherwise known for their lush, natural beauty - inflicted by illnesses that doctors say are likely linked to high exposure to pollution.
