Under the new scheme, IndiGo flight ticket is available at Rs 1,489. The promotional offer is open till July 14, 2015.
People, who will buy ticket under the above mentioned scheme, will fly between Aug 1 and Sept 30, 2015, said travel website Cleartrip.
IndiGo's new offer has come just days after 'Monsoon Sale' by Jet Airways and 'Red Hot Fares Sale' by SpiceJet.
Under 'Monsoon Sale', Jet Airways has been offering flight tickets starting from Rs 1,499.
Jet Airways' offer is applicable for bookings made between July 8 and July 13, 2015, for travel between July 20 and Oct 15, 2015.
Under 'Red Hot Fares Sale', SpiceJet had offered flight ticket at Rs 1,899. Another budget carrier AirAsia too came up with a promotional scheme, offering fares from Rs 999.