Indigo Airlines — I was left at the airport even after completing the security check

I had a flight from delhi bangalore (6e-109) on 9th november from the 1d terminal delhi. even after completing the security check well on time i was left at the airport and missed the flight. i want to know why my name was not announced by the ground saff and why was i not called on my cell. the staff was rude and totally non co-operative. i need the full refund of my amount. this incident has caused a lot of mental harassment and for the new booking i had to shell out 8k which is simply not acceptable. i need a total refund of my earlier booking amount else i will take this to the consumer court.