Refer to the input text as context and select the correct relationship between 'Vodafone' and 'Vodafone India' from the available options.
Options: subsidiary, chief executive officer, headquarters location, stock exchange

Vodafone has benefited from the intra-circle MNP that was rolled out in 2011 and we look forward to a similar response this time," Vivek Mathur, chief commercial officer, Vodafone India said.
subsidiary