Air India — for refund of ticket amount

Sir/madam
I purchased two flight tickets (Ticket no[protected] & 7833) of air india through makemytrips (Booking id nf[protected]) on 21/10/18 for my two cousion brothers (Satish & vinod) to travel from delhi to pune on 27 oct 18. Due to ongoing roadways conflicts in haryana and some others clashes in my town they could not leave from town on right time and consequently they missed the flight. Later they reached at the booking counter at 1300 o clock and booked another flight of air india paying huge amount. I approached to makemytrips for cancel and refund (Ref no[protected]. Further approached to air india where the customer care executive denied to refund any amount according to the policy. Sir it is unfortunate that please do needful and help me to get the whole ticket amount back. Thank you
My mob no is [protected].