Tuberculosis(TB) has re-emerged as the number one killer in the world. And the battle against it will mainly have to be fought in India, says Dr Thomas Frieden, WHO medical officer in India. Every day, a thousand people in India succumb to the disease which also happens to be the most neglected one in the country. The stastics are alarming: India has 37 per cent of the TB patients in the world. It means 300 million carriers of whom 13 million are ill.