Indigo Airlines — Offers not really paid to students

Address: Jaipur, Rajasthan, 302019

At exploring flight on 7th Apr from Ahmedabad to Delhi to fly on 3rd May I do find option to click on 6E student discount i.e 8% of basic fare and student can carry 10 kg additional baggage to check in, subject to submit ID card of school at the time of check in. when paying, we are asked to pay same amount like an adult travellers. seemsWhite collar cheating with people.