Analysts on average expected a net profit of 6.90 billion rupees for the company, nearly a third owned by Southeast Asia's top phone carrier SingTel.
A weak rupee led to forex losses of Rs. 3.42 billion in the latest quarter, it said.
The company's consolidated net debt was at $9.7 billion at end-September.
Bharti Airtel operates across 20 countries in Asia and Africa.
India is its main market accounting for about 70% of the total revenue.