Air India Express — delayed flight

We travelling to dubai in ix 247 on 26/10/17 which is delay by 3 hrs we are 12 members travelling and harrased so much. Why it is delay we want reason and who will reimburse the same. We have family tour to dubai and we lost some places to visit at dubai who will fulfill our lost. We will delay by full one day tour and we loss almost 50000 inr who will responsible for that?