The public offer is set to open on Tuesday and close on 29 October.
It proposed to list on the Bombay Stock Exchange and the National Stock Exchange of India.
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Global coordinators of the share sale include JP Morgan, Barclays and UBS, according to the firm's preliminary prospectus filed in June.
The firm warned in its initial prospectus that there was "no assurance that the new routes which we expand into will be profitable or become profitable.