A baby weighing 6.8 kg was born to a woman in Karnataka. She is said to be the heaviest baby that is born up till now in India. The baby had to be delivered through caesarian section. The mother is not a diabetic. The heaviest baby ever born in the world weighed over 10 kg. In some cases, babies put on weight after six months of conception. Doctors are trying to find out the reason for the overweight baby.