Lol it's shittier.. their data topups are for fixed validity so it may exhaust even before your current plan expires, whereas Airtel is providing data top for for unlimited days ( obviously up till the current plan lasts)
The two will have independent validity and run parallel. However, data will be first charged against 399 pack and only additional use will be charged to 251 pack.@pachabhut what would be the validity of data pack of Rs251 ( 50gb for 28days ) if unlimited pack ( Rs399) is already running.
Would it be same as unlimited pack validity ?