According to one unconfirmed sources who are mobile shop owner Jio 4G will be launched in India by 1st week of March 2016. He said that team of JIO visited his shop and said that sim cards will be available by Feb end however activation would be done from March only. On cost front he said 10GB data would cost Rs.300 per month.
Though I won’t consider it as a reliable source but still worth sharing. Though I would like to remind you previously an article in Hindi newspaper said 10GB data would cost Rs.599.
So take all this as a pinch of salt. We won’t know until they officially launch. For now even jio 4g website(jio.com) is not ready.