Complex sentence: Dhirubhai Ambani founded the Reliance Industries in 1966, and as of 2017, the company has over 250,000 employees and provides almost 5% of the Central Government's total tax revenue.
Split into simpler sentences: Dhirubhai Ambani founded the Reliance Industries in 1966. As of 2017, the company has more than 250,000 employees and provides almost 5% of the Central Government's total tax revenue.