Gulf Air — Denied boarding on confirmed ticket,ride , unethical and discriminative behaviour of staff

I had a confirmed ticket on Gulf Air flight GF 70 Cairo - Bahrain - Delhi on 13 August 2022. Presumably due to overbooking, I was denied boarding and the staff at the counter were rude and won't listen to me that a as a senior citizen, I didn't deserve such rude behaviour. Not only that, they were discriminative as they accomodated some passengers of their own community in another flight but I was made to exit the airport . I had to book another flight for next day which cost me Rs 54000/- (approximately) and also had to bear the cost of hotel accommodation i.e. USD 120. Gulf Air has taken no action on my complaint so far. In fact, they haven't responded at all.