Paytm, the youngest licensee, Reliance Industries , Bharti Airtel , Vodafone , Aditya Birla Nuvo , Sun Pharma founder Dilip Shanghvi , Fino PayTech, Tech Mahindra , National Securities Depository, Cholamandalam Finance and India Post were among the 42 applicants that got approval for starting payments banks.
Take context from the input text and decide on the accurate relationship between 'Bharti Airtel' and 'Vodafone' from the options provided.
Options: subsidiary, publisher, owned by, legal form