Discounted price on Air India flights when logged on plus £10 off using Code – Member Discount

I noticed that Air India has slightly better prices when logged in with discount on convenience fee etc.
Further I got approx £10 of using coupon CJAIR
The offer of 50% off on the convenience fee is available for logged-in Maharaja Club members only and is valid for a limited period.
Special discounted fares under this offer are applicable exclusively to logged-in Maharaja Club members.
The offer is not applicable on Cash Points bookings.
Discounted fares apply only to fresh bookings and are not valid on rescheduled bookings, whether processed via the website, call centre, or airport.
The convenience fee discount is applicable on all domestic and select international routes, as detailed in the table above.
The fare discount applies exclusively to the base fare on all domestic and international routes.
The offer is valid for adult and child passengers only.
The offer is applicable on both one-way and round-trip journeys.
Seats under this offer are limited and available on a first-come, first-served basis, subject to availability.
The offer is available only to Air India Maharaja Club members.
All bookings made under this offer are subject to applicable fare rules, including change and cancellation charges.
This offer cannot be combined with any other promotion and is not applicable on concessionary fares.
Flight schedules are subject to change.
Group bookings are not eligible under this offer.
Flight schedules, aircraft type, and operations are subject to change due to operational requirements.
The offer is valid only for bookings made directly through the Air India website or mobile app.
The offer is applicable only on flights operated by Air India.
Air India reserves the right to modify, suspend, or withdraw the offer at any time without prior notice.
Air India shall not be liable for any issues arising from or related to this offer.
All disputes arising out of or in connection with this offer shall be subject to the exclusive jurisdiction of the competent courts/tribunals in New Delhi.
All Bookings made under this offer are subject to Air Indias conditions of carriage available at airindia.com.