Tata Sky customers can get additional two months of free service on recharge of 12 months using any Citibank cards. The offer that was introduced some time earlier this month, is applicable for both Citibank credit and debit card users. It can be availed by recharging the direct-to-home (DTH) account either directly through the Tata Sky website or using its mobile app. The new offer by the service provider sits alongside the existing Tata Sky Cashback offer that brings one month of free service for customers paying for an annual pack.