Aircel is an Indian mobile network operator founded in 1999. It operates 2G, 3G, and 4G networks in many parts of India. Aircel has faced financial difficulties in recent years due to intense competition and high debt levels. It has received regulatory approvals to raise additional funding through loans but still faces challenges turning its business around. TRAI has also imposed fines on Aircel and other carriers for failing to meet quality of service benchmarks.