Its a random offer and keeps changing every now and then....I also have both these 260+2GB and 260+6GB offers in different prepaid numbers....Damn I am unable to access family share option in My Airtel app since two days....anyone facing issues with Family share option and another strange thing is My 4G balance was 4GB when last checked but since yesterday it shows 2GB in Airtel app whereas USSD code shows 4GB, I am not sure which one to rely on.