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.
Already containing 17.5% of the world's population, India is projected to be the world's most populous country by 2025, surpassing China, its population reaching 1.6 billion by 2050. Its population growth rate is 1.2%, ranking 94th in the world in 2013.The Indian population had reached the billion mark by 1998.ndia is the second most populous country in the world, with over 1.271 billion people (2015), more than a sixth of the world's population.