Total expenses jumped 30.2 per cent to Rs 5,891 crore ($884 million), including a 33.5 per cent increase in fuel costs in the January-March quarter.
Profit dropped to Rs 118 crore, from Rs 440 crore a year earlier, InterGlobe said in a statement.
IndiGo also had to cancel hundreds of flights in March when several in-flight engine failures prompted India's aviation regulator to ground eight of the airline's Airbus A320neo aircraft fitted with certain Pratt & Whitney engines.
The airline managed to transfer passengers to other flights, however, minimising revenue losses.
Revenue per available seat kilometre - a measure of its operating earnings - fell over three per cent to 3.40 rupees in January-March. Passenger yields, which gauge the average fare paid per mile per customer, dropped over five percent.
However, IndiGo expects a 25 per cent rise in available seat kilometres, a measure of the airline's passenger carrying capacity, in the fiscal year that began on April 1.
The company announced on Friday that its president, Aditya Ghosh, would step down after 10 years with the company and it would consider naming Gregory Taylor, an airline sector veteran, as his successor in the coming months
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