New Delhi/Mumbai, July 28 -- InterGlobe Aviation Ltd, which operates India's largest airline IndiGo, is seeking shareholder approval to raise its borrowing limit by 57% to Rs.110,000 crore, from the existing Rs.70,000 crore, as the airline prepares to finance an aggressive fleet expansion.

The airline expects to exhaust its existing borrowing limit in FY27 and seeks an additional borrowing capacity of Rs.40,000 crore, which it is likely to use by the first half of FY29, IndiGo said in the shareholder notice to its annual general meeting on Tuesday.

About 75% of the incremental borrowing capacity is expected to be used to finance aircraft through long-term finance leases, with the balance earmarked for capital expenditure and working cap...