Ever Since Reliance Jio launched its operations in the country, Airtel, Vodafone-Idea, BSNL, and MTNL are trying their best to retain users. However, state-run telecom operator MTNL is under deep financial crisis as it has total debt of Rs. 20,000 crores. The telco posted a loss of Rs. 3,693.72 crores in FY20.