Air India — flight got delayed and stayed for more than 12 hours for alternate flight

Dear air india team,
Confirmation number: yrpyd (365vvy)
Name: kannan ganesan

I have booked ticked for travel from frankfurt to chennai on 15/2/19, original schedule time at frankfurt is 15.45 for ai 124, the said flight got rescheduled at 16.45 and again at 17.05, i have to catch the connection flight at mumbai to chennai @ 5.55 a. M (Ai 570), the said flight also rescheduled at 7.10 a. M, due to late arrival of ai124 at mumbai airport and i have to collect the baggage and also immigration check in, i am not able to catch the 7.10 am connection flight. More than 5 passengers missed the flight, air india also admitted the mistakes and informed to make some alternate arrangements. Finally they issued new boarding pass to travel in ai 0094 at 18.30 on16/2/19 for travel from mumbai to chennai. Originally i have to reach at 8.05 a. M on 16/2/19, but due airway's mistake, i reached at 20.30 on 16/2/19 with a delay of more than 12 hours. I lost my important plans scheduled on 16/2/19. Even they have not arranged for break-fast also on 16/2/19, i had spend from my own pocket. I send two message to airways by mentioning the details and inform them to refund the money along with compensation for lost of my plans and mental agony, but there is no revert from air ways. I once again request the air india to refund the ticket fare (Frankfurt to chennai) along with compensation.
I faced bad experience with air india service.