Utilize the input text as a context reference, choose the right relationship between Reliance Communications and Dhirubhai Ambani from the options. Options: product/material produced, manufacturer, distributed by, industry, position held, original broadcaster, owned by, founded by, distribution format, headquarters location, stock exchange, currency, parent organization, chief executive officer, director/manager, owner of, operator, member of, employer, chairperson, platform, subsidiary, legal form, publisher, developer, brand, business division, location of formation, creator.

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.

Answer: founded_by