But in cases of firms like Aircel, for instance, it can trade most of its liberalized 2300MHz spectrum with Vodafone or Idea – trading with Bharti Airtel could run up against the caps which prohibit a telco from owning more than 50% of the spectrum in any band or 25% across all bands.
Refer to the input text as context and select the correct relationship between 'Bharti Airtel' and 'Vodafone' from the available options.
Options: subsidiary, headquarters location, distributed by, owned by