All group companies of ADAG (Anil Dhirubhai Ambani Group) delivered pathetic returns even after two decades for Reliance Infra, and one decade for Reliance Capital and Reliance Communications and Reliance Power.
In the context of the input sentence, determine the relationship between 'Reliance Communications' and 'Dhirubhai Ambani'.
Options: employer, developer, founded by, headquarters location