While prepaid plans remain one of the most popular options offered by the service providers as they help keep the budget in check, for users who are looking for more than just basic calling and data, postpaid plans might be the way to go. That being said, the majority of the Indian population relies on budget plans and telcos offer multiple affordable postpaid plans for their subscribers. Mentioned below is a comparison between postpaid plans offered by Airtel and Vi that cost less than Rs 500 along with the pack details.