Jio was started by India’s richest man Mr.Mukest ambani. At first he declares jio as a free 4G providing network in India. His tarhet was to increase his customers and the faith for jio. Then he extended span for free network . He has developed many things like jio fi, jio mobile , etc. Now his whole company is controlled by his son AKASH AMBANI . Now they provide 3months free calls , sms, internet for 345/- just. Jio has done a revolutionary change in Indian market . The market of Idea , airtel, vodafone just dropped down suddenly.