sentences:  The locality, known as the biggest automobile hub in South Asia, is one of the fastest-growing suburbs of Chennai and is evolving into a multi-faceted industrial zone.Oragadam has been touted as Chennai's largest and the most developed industrial belt.With over 22 Fortune 500 companies (of which six are global car manufacturers), the Sriperumbudur–Oragadam belt has seen tremendous industrial growth in less than 4 years.