IndiGo Airlines (6E, Delhi International) parent, InterGlobe Aviation Ltd, has filed a preliminary IPO prospectus with the Securities and Exchange Board of India (SEBI) ahead of a proposed debut on the Mumbai Stock Exchange later in the year.

According to the document, the firm is planning to raise up to USD400 million through the sale of up to INR12.7 billion (USD199.64 million) worth of new shares, and the sale of up to 30.15 million of existing shares. Overall, approximately 12% of InterGlobe's stock will be put on the market.

Of the funds raised, INR11.6 billion (USD182.9 million) will be used to retire certain outstanding aircraft lease obligations, INR333.69 million (USD5.28 million) will be put towards the purchase of ground support equipment, with a yet-to-be-determined amount to be used for general corporate purposes.

InterGlobe has appointed Citigroup, JPMorgan, Morgan Stanley, Barclays, UBS, and Kotak Mahindra as its managers for the IPO.