This is one of the biggest for Airbus from a single airline operator.
The new planes would replace old aircraft in its fleet and operate non-stop flights to long-haul destinations such as London and Tokyo, official sources at the IndiGo Airlines confirmed.
Indian media quoted Airbus as saying in a statement on Tuesday that the order was for a mix of A320neo, A321neo and A321XLR (extra long range) aircraft.
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