Utilize the input text as a context reference, choose the right relationship between 'Arundhati Bhattacharya' and 'State Bank of India' from the options.
Options: chairperson, developer, creator, employer

When Arundhati Bhattacharya took charge as chairman of State Bank of India (SBI) in October 2013, the country's largest lender had more than Rs 65,000 crore of non-performing assets (NPAs).
employer