It’s 25 years from the day the first mobile call was made in India, and against a per-minute call rate of Rs 24 charged then where both outgoing and incoming customers had to pay, India is now the highest data-consuming country in the world, but with some of the lowest voice and internet tariffs.

from Times of India https://timesofindia.indiatimes.com/business/india-business/from-rs-24/min-calls-to-free-talk-time-cheapest-data/articleshow/77295894.cms