Causes of conjunctivitis. Causes of conjunctivitis include: Bacterial or viral infection. Infection with a virus that may also cause a fever and sore throat. Sexually transmitted infections (STIs), including chlamydia and gonorrhoea. Irritants such as chlorine from swimming pools, shampoo, smoke, fumes or a loose eyelash.
India is on track to become the worldâs most populous nation in less than a decade â or six years earlier than previously thought, according to the U.N. With 1.38 billion people compared with Indiaâs 1.31 billion, China is currently the worldâs most populous country. Figures for both countries are expected to swell to around 1.4 billion by 2022, at which point Indiaâs population is likely to expand beyond Chinaâs.
It's also the most populous democratic country in the world. The most recent estimate gives India a population of 1.29 billion in 2015. The country as a whole has a population density of 384 people per square kilometer (994/square mile), which ranks 31st in the world.In Mumbai, however, the population density is 21,000 people per square kilometer (54,000/square mile).ndia's largest city is Mumbai, with a population of 12.5 million, closely followed by Delhi, with a population of 11 million. Overall, there are more than 50 urban areas in India with a population of more than one million people.