MUMBAI, Sept 10 (Reuters) - Sun Pharmaceutical Industries Ltd, India's largest drugmaker by sales, said it is looking to divest a manufacturing plant in Ireland as it tries to control costs that have spiralled since it bought Ranbaxy Laboratories Ltd.
What is the relationship between 'Sun Pharmaceutical' and 'Ranbaxy Laboratories' in the context of the input sentence.
Options: owned by, parent organization, operator, subsidiary